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Finding the Fourth Proportional to 487,046.81, 730,665.89 and 150,030.11

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Solution

The fourth proportional to 487,046.81, 730,665.89 and 150,030.11 is: 225,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,046.81 : 730,665.89 = 150,030.11 : x
  2. Step 2: Convert to fraction form
    487,046.81/730,665.89 = 150,030.11/x
  3. Step 3: Cross multiply
    487,046.81x = 730,665.89 × 150,030.11
  4. Step 4: Simplify right side
    487,046.81x = 109,621,883,849.95
  5. Step 5: Solve for x
    x = 109,621,883,849.95/487,046.81
  6. Step 6: Final answer
    x = 225,074.64

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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.