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Finding the Fourth Proportional to 614,867.20, 921,863.40 and 235,641.40

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Solution

The fourth proportional to 614,867.20, 921,863.40 and 235,641.40 is: 353,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,867.20 : 921,863.40 = 235,641.40 : x
  2. Step 2: Convert to fraction form
    614,867.20/921,863.40 = 235,641.40/x
  3. Step 3: Cross multiply
    614,867.20x = 921,863.40 × 235,641.40
  4. Step 4: Simplify right side
    614,867.20x = 217,229,182,184.76
  5. Step 5: Solve for x
    x = 217,229,182,184.76/614,867.20
  6. Step 6: Final answer
    x = 353,294.47

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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.