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Finding the Fourth Proportional to 285,332.87, 393,771.72 and 158,008.46

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Solution

The fourth proportional to 285,332.87, 393,771.72 and 158,008.46 is: 218,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,332.87 : 393,771.72 = 158,008.46 : x
  2. Step 2: Convert to fraction form
    285,332.87/393,771.72 = 158,008.46/x
  3. Step 3: Cross multiply
    285,332.87x = 393,771.72 × 158,008.46
  4. Step 4: Simplify right side
    285,332.87x = 62,219,261,099.89
  5. Step 5: Solve for x
    x = 62,219,261,099.89/285,332.87
  6. Step 6: Final answer
    x = 218,058.52

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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.