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Finding the Fourth Proportional to 285,393.33, 393,842.55 and 158,068.83

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Solution

The fourth proportional to 285,393.33, 393,842.55 and 158,068.83 is: 218,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,393.33 : 393,842.55 = 158,068.83 : x
  2. Step 2: Convert to fraction form
    285,393.33/393,842.55 = 158,068.83/x
  3. Step 3: Cross multiply
    285,393.33x = 393,842.55 × 158,068.83
  4. Step 4: Simplify right side
    285,393.33x = 62,254,231,082.72
  5. Step 5: Solve for x
    x = 62,254,231,082.72/285,393.33
  6. Step 6: Final answer
    x = 218,134.85

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1.5x scale

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.