Home / 377,695.31-521,250-216,565.35

Finding the Fourth Proportional to 377,695.31, 521,250 and 216,565.35

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Solution

The fourth proportional to 377,695.31, 521,250 and 216,565.35 is: 298,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,695.31 : 521,250 = 216,565.35 : x
  2. Step 2: Convert to fraction form
    377,695.31/521,250 = 216,565.35/x
  3. Step 3: Cross multiply
    377,695.31x = 521,250 × 216,565.35
  4. Step 4: Simplify right side
    377,695.31x = 112,884,688,687.50
  5. Step 5: Solve for x
    x = 112,884,688,687.50/377,695.31
  6. Step 6: Final answer
    x = 298,877.66

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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.