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Finding the Fourth Proportional to 285,332.54, 393,758.55 and 158,007.98

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Solution

The fourth proportional to 285,332.54, 393,758.55 and 158,007.98 is: 218,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,332.54 : 393,758.55 = 158,007.98 : x
  2. Step 2: Convert to fraction form
    285,332.54/393,758.55 = 158,007.98/x
  3. Step 3: Cross multiply
    285,332.54x = 393,758.55 × 158,007.98
  4. Step 4: Simplify right side
    285,332.54x = 62,216,993,093.23
  5. Step 5: Solve for x
    x = 62,216,993,093.23/285,332.54
  6. Step 6: Final answer
    x = 218,050.82

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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.