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Finding the Fourth Proportional to 377,417.88, 521,000.10 and 269,801.28

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Solution

The fourth proportional to 377,417.88, 521,000.10 and 269,801.28 is: 372,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,417.88 : 521,000.10 = 269,801.28 : x
  2. Step 2: Convert to fraction form
    377,417.88/521,000.10 = 269,801.28/x
  3. Step 3: Cross multiply
    377,417.88x = 521,000.10 × 269,801.28
  4. Step 4: Simplify right side
    377,417.88x = 140,566,493,860.13
  5. Step 5: Solve for x
    x = 140,566,493,860.13/377,417.88
  6. Step 6: Final answer
    x = 372,442.59

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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.