Home / 215,547.40-323,321.10-140,897.80

Finding the Fourth Proportional to 215,547.40, 323,321.10 and 140,897.80

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Solution

The fourth proportional to 215,547.40, 323,321.10 and 140,897.80 is: 211,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,547.40 : 323,321.10 = 140,897.80 : x
  2. Step 2: Convert to fraction form
    215,547.40/323,321.10 = 140,897.80/x
  3. Step 3: Cross multiply
    215,547.40x = 323,321.10 × 140,897.80
  4. Step 4: Simplify right side
    215,547.40x = 45,555,231,683.58
  5. Step 5: Solve for x
    x = 45,555,231,683.58/215,547.40
  6. Step 6: Final answer
    x = 211,346.70

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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.