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Finding the Fourth Proportional to 490,707.90, 735,964.65 and 237,987.90

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Solution

The fourth proportional to 490,707.90, 735,964.65 and 237,987.90 is: 356,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,707.90 : 735,964.65 = 237,987.90 : x
  2. Step 2: Convert to fraction form
    490,707.90/735,964.65 = 237,987.90/x
  3. Step 3: Cross multiply
    490,707.90x = 735,964.65 × 237,987.90
  4. Step 4: Simplify right side
    490,707.90x = 175,150,681,527.74
  5. Step 5: Solve for x
    x = 175,150,681,527.74/490,707.90
  6. Step 6: Final answer
    x = 356,934.71

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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.