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Finding the Fourth Proportional to 370,425.60, 511,270.92 and 209,373.84

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Solution

The fourth proportional to 370,425.60, 511,270.92 and 209,373.84 is: 288,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,425.60 : 511,270.92 = 209,373.84 : x
  2. Step 2: Convert to fraction form
    370,425.60/511,270.92 = 209,373.84/x
  3. Step 3: Cross multiply
    370,425.60x = 511,270.92 × 209,373.84
  4. Step 4: Simplify right side
    370,425.60x = 107,046,755,800.73
  5. Step 5: Solve for x
    x = 107,046,755,800.73/370,425.60
  6. Step 6: Final answer
    x = 288,983.15

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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.