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Finding the Fourth Proportional to 235,572.75, 325,035.45 and 137,440.71

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Solution

The fourth proportional to 235,572.75, 325,035.45 and 137,440.71 is: 189,636.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,572.75 : 325,035.45 = 137,440.71 : x
  2. Step 2: Convert to fraction form
    235,572.75/325,035.45 = 137,440.71/x
  3. Step 3: Cross multiply
    235,572.75x = 325,035.45 × 137,440.71
  4. Step 4: Simplify right side
    235,572.75x = 44,673,103,023.17
  5. Step 5: Solve for x
    x = 44,673,103,023.17/235,572.75
  6. Step 6: Final answer
    x = 189,636.12

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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.