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Finding the Fourth Proportional to 149,953.70, 224,930.55 and 39,145.70

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Solution

The fourth proportional to 149,953.70, 224,930.55 and 39,145.70 is: 58,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,953.70 : 224,930.55 = 39,145.70 : x
  2. Step 2: Convert to fraction form
    149,953.70/224,930.55 = 39,145.70/x
  3. Step 3: Cross multiply
    149,953.70x = 224,930.55 × 39,145.70
  4. Step 4: Simplify right side
    149,953.70x = 8,805,063,831.14
  5. Step 5: Solve for x
    x = 8,805,063,831.14/149,953.70
  6. Step 6: Final answer
    x = 58,718.55

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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.