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Finding the Fourth Proportional to 663,681.20, 995,525.40 and 165,045.20

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Solution

The fourth proportional to 663,681.20, 995,525.40 and 165,045.20 is: 247,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,681.20 : 995,525.40 = 165,045.20 : x
  2. Step 2: Convert to fraction form
    663,681.20/995,525.40 = 165,045.20/x
  3. Step 3: Cross multiply
    663,681.20x = 995,525.40 × 165,045.20
  4. Step 4: Simplify right side
    663,681.20x = 164,306,688,748.08
  5. Step 5: Solve for x
    x = 164,306,688,748.08/663,681.20
  6. Step 6: Final answer
    x = 247,568.70

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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.