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Finding the Fourth Proportional to 212,853.60, 319,165.20 and 88,053.60

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Solution

The fourth proportional to 212,853.60, 319,165.20 and 88,053.60 is: 132,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,853.60 : 319,165.20 = 88,053.60 : x
  2. Step 2: Convert to fraction form
    212,853.60/319,165.20 = 88,053.60/x
  3. Step 3: Cross multiply
    212,853.60x = 319,165.20 × 88,053.60
  4. Step 4: Simplify right side
    212,853.60x = 28,103,644,854.72
  5. Step 5: Solve for x
    x = 28,103,644,854.72/212,853.60
  6. Step 6: Final answer
    x = 132,032.74

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1.5x scale

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.