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Finding the Fourth Proportional to 353,437.47, 487,748.52 and 192,294.45

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Solution

The fourth proportional to 353,437.47, 487,748.52 and 192,294.45 is: 265,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,437.47 : 487,748.52 = 192,294.45 : x
  2. Step 2: Convert to fraction form
    353,437.47/487,748.52 = 192,294.45/x
  3. Step 3: Cross multiply
    353,437.47x = 487,748.52 × 192,294.45
  4. Step 4: Simplify right side
    353,437.47x = 93,791,333,391.71
  5. Step 5: Solve for x
    x = 93,791,333,391.71/353,437.47
  6. Step 6: Final answer
    x = 265,368.96

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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.