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Finding the Fourth Proportional to 350,227.80, 525,018.66 and 137,140.88

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Solution

The fourth proportional to 350,227.80, 525,018.66 and 137,140.88 is: 205,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,227.80 : 525,018.66 = 137,140.88 : x
  2. Step 2: Convert to fraction form
    350,227.80/525,018.66 = 137,140.88/x
  3. Step 3: Cross multiply
    350,227.80x = 525,018.66 × 137,140.88
  4. Step 4: Simplify right side
    350,227.80x = 72,001,518,423.73
  5. Step 5: Solve for x
    x = 72,001,518,423.73/350,227.80
  6. Step 6: Final answer
    x = 205,584.82

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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.