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Finding the Fourth Proportional to 487,752.40, 731,628.60 and 222,031.90

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Solution

The fourth proportional to 487,752.40, 731,628.60 and 222,031.90 is: 333,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,752.40 : 731,628.60 = 222,031.90 : x
  2. Step 2: Convert to fraction form
    487,752.40/731,628.60 = 222,031.90/x
  3. Step 3: Cross multiply
    487,752.40x = 731,628.60 × 222,031.90
  4. Step 4: Simplify right side
    487,752.40x = 162,444,888,152.34
  5. Step 5: Solve for x
    x = 162,444,888,152.34/487,752.40
  6. Step 6: Final answer
    x = 333,047.85

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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.