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Finding the Fourth Proportional to 377,521.92, 521,001.76 and 216,403.76

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Solution

The fourth proportional to 377,521.92, 521,001.76 and 216,403.76 is: 298,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,521.92 : 521,001.76 = 216,403.76 : x
  2. Step 2: Convert to fraction form
    377,521.92/521,001.76 = 216,403.76/x
  3. Step 3: Cross multiply
    377,521.92x = 521,001.76 × 216,403.76
  4. Step 4: Simplify right side
    377,521.92x = 112,746,739,830.62
  5. Step 5: Solve for x
    x = 112,746,739,830.62/377,521.92
  6. Step 6: Final answer
    x = 298,649.52

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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.