Home / 285,421.60-393,894.78-158,097.18

Finding the Fourth Proportional to 285,421.60, 393,894.78 and 158,097.18

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Solution

The fourth proportional to 285,421.60, 393,894.78 and 158,097.18 is: 218,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,421.60 : 393,894.78 = 158,097.18 : x
  2. Step 2: Convert to fraction form
    285,421.60/393,894.78 = 158,097.18/x
  3. Step 3: Cross multiply
    285,421.60x = 393,894.78 × 158,097.18
  4. Step 4: Simplify right side
    285,421.60x = 62,273,653,934.72
  5. Step 5: Solve for x
    x = 62,273,653,934.72/285,421.60
  6. Step 6: Final answer
    x = 218,181.30

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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.