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Finding the Fourth Proportional to 152,139.70, 228,209.55 and 148,251.70

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Solution

The fourth proportional to 152,139.70, 228,209.55 and 148,251.70 is: 222,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,139.70 : 228,209.55 = 148,251.70 : x
  2. Step 2: Convert to fraction form
    152,139.70/228,209.55 = 148,251.70/x
  3. Step 3: Cross multiply
    152,139.70x = 228,209.55 × 148,251.70
  4. Step 4: Simplify right side
    152,139.70x = 33,832,453,743.74
  5. Step 5: Solve for x
    x = 33,832,453,743.74/152,139.70
  6. Step 6: Final answer
    x = 222,377.55

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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.