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Finding the Fourth Proportional to 437,205.20, 603,344.42 and 253,479.47

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Solution

The fourth proportional to 437,205.20, 603,344.42 and 253,479.47 is: 349,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,205.20 : 603,344.42 = 253,479.47 : x
  2. Step 2: Convert to fraction form
    437,205.20/603,344.42 = 253,479.47/x
  3. Step 3: Cross multiply
    437,205.20x = 603,344.42 × 253,479.47
  4. Step 4: Simplify right side
    437,205.20x = 152,935,425,951.12
  5. Step 5: Solve for x
    x = 152,935,425,951.12/437,205.20
  6. Step 6: Final answer
    x = 349,802.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.