Home / 285,458.07-393,926.72-158,134.71

Finding the Fourth Proportional to 285,458.07, 393,926.72 and 158,134.71

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Solution

The fourth proportional to 285,458.07, 393,926.72 and 158,134.71 is: 218,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,458.07 : 393,926.72 = 158,134.71 : x
  2. Step 2: Convert to fraction form
    285,458.07/393,926.72 = 158,134.71/x
  3. Step 3: Cross multiply
    285,458.07x = 393,926.72 × 158,134.71
  4. Step 4: Simplify right side
    285,458.07x = 62,293,486,837.78
  5. Step 5: Solve for x
    x = 62,293,486,837.78/285,458.07
  6. Step 6: Final answer
    x = 218,222.90

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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.