Home / 663,420.20-995,130.30-164,784.20

Finding the Fourth Proportional to 663,420.20, 995,130.30 and 164,784.20

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Solution

The fourth proportional to 663,420.20, 995,130.30 and 164,784.20 is: 247,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,420.20 : 995,130.30 = 164,784.20 : x
  2. Step 2: Convert to fraction form
    663,420.20/995,130.30 = 164,784.20/x
  3. Step 3: Cross multiply
    663,420.20x = 995,130.30 × 164,784.20
  4. Step 4: Simplify right side
    663,420.20x = 163,981,750,381.26
  5. Step 5: Solve for x
    x = 163,981,750,381.26/663,420.20
  6. Step 6: Final answer
    x = 247,176.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.