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Finding the Fourth Proportional to 477,357.93, 715,936.04 and 140,306.91

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Solution

The fourth proportional to 477,357.93, 715,936.04 and 140,306.91 is: 210,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,357.93 : 715,936.04 = 140,306.91 : x
  2. Step 2: Convert to fraction form
    477,357.93/715,936.04 = 140,306.91/x
  3. Step 3: Cross multiply
    477,357.93x = 715,936.04 × 140,306.91
  4. Step 4: Simplify right side
    477,357.93x = 100,450,773,530.04
  5. Step 5: Solve for x
    x = 100,450,773,530.04/477,357.93
  6. Step 6: Final answer
    x = 210,430.72

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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.