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Finding the Fourth Proportional to 375,066.80, 562,539.56 and 138,520.88

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Solution

The fourth proportional to 375,066.80, 562,539.56 and 138,520.88 is: 207,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,066.80 : 562,539.56 = 138,520.88 : x
  2. Step 2: Convert to fraction form
    375,066.80/562,539.56 = 138,520.88/x
  3. Step 3: Cross multiply
    375,066.80x = 562,539.56 × 138,520.88
  4. Step 4: Simplify right side
    375,066.80x = 77,923,474,886.01
  5. Step 5: Solve for x
    x = 77,923,474,886.01/375,066.80
  6. Step 6: Final answer
    x = 207,758.92

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1.5x scale

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.