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Finding the Fourth Proportional to 144,289.70, 216,434.55 and 133,792.10

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Solution

The fourth proportional to 144,289.70, 216,434.55 and 133,792.10 is: 200,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,289.70 : 216,434.55 = 133,792.10 : x
  2. Step 2: Convert to fraction form
    144,289.70/216,434.55 = 133,792.10/x
  3. Step 3: Cross multiply
    144,289.70x = 216,434.55 × 133,792.10
  4. Step 4: Simplify right side
    144,289.70x = 28,957,232,957.06
  5. Step 5: Solve for x
    x = 28,957,232,957.06/144,289.70
  6. Step 6: Final answer
    x = 200,688.15

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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.