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Finding the Fourth Proportional to 476,841.83, 715,263.10 and 121,856.20

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Solution

The fourth proportional to 476,841.83, 715,263.10 and 121,856.20 is: 182,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,841.83 : 715,263.10 = 121,856.20 : x
  2. Step 2: Convert to fraction form
    476,841.83/715,263.10 = 121,856.20/x
  3. Step 3: Cross multiply
    476,841.83x = 715,263.10 × 121,856.20
  4. Step 4: Simplify right side
    476,841.83x = 87,159,241,273.42
  5. Step 5: Solve for x
    x = 87,159,241,273.42/476,841.83
  6. Step 6: Final answer
    x = 182,784.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.