Home / 217,155.18-299,549.94-126,501.60

Finding the Fourth Proportional to 217,155.18, 299,549.94 and 126,501.60

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Solution

The fourth proportional to 217,155.18, 299,549.94 and 126,501.60 is: 174,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,155.18 : 299,549.94 = 126,501.60 : x
  2. Step 2: Convert to fraction form
    217,155.18/299,549.94 = 126,501.60/x
  3. Step 3: Cross multiply
    217,155.18x = 299,549.94 × 126,501.60
  4. Step 4: Simplify right side
    217,155.18x = 37,893,546,689.90
  5. Step 5: Solve for x
    x = 37,893,546,689.90/217,155.18
  6. Step 6: Final answer
    x = 174,499.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.