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Finding the Fourth Proportional to 153,115.70, 229,025.55 and 137,434.10

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Solution

The fourth proportional to 153,115.70, 229,025.55 and 137,434.10 is: 205,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,115.70 : 229,025.55 = 137,434.10 : x
  2. Step 2: Convert to fraction form
    153,115.70/229,025.55 = 137,434.10/x
  3. Step 3: Cross multiply
    153,115.70x = 229,025.55 × 137,434.10
  4. Step 4: Simplify right side
    153,115.70x = 31,475,920,341.26
  5. Step 5: Solve for x
    x = 31,475,920,341.26/153,115.70
  6. Step 6: Final answer
    x = 205,569.52

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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.