Home / 918,138.50-1,377,287.14-253,290.50

Finding the Fourth Proportional to 918,138.50, 1,377,287.14 and 253,290.50

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Solution

The fourth proportional to 918,138.50, 1,377,287.14 and 253,290.50 is: 379,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,138.50 : 1,377,287.14 = 253,290.50 : x
  2. Step 2: Convert to fraction form
    918,138.50/1,377,287.14 = 253,290.50/x
  3. Step 3: Cross multiply
    918,138.50x = 1,377,287.14 × 253,290.50
  4. Step 4: Simplify right side
    918,138.50x = 348,853,748,334.17
  5. Step 5: Solve for x
    x = 348,853,748,334.17/918,138.50
  6. Step 6: Final answer
    x = 379,957.65

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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.