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Finding the Fourth Proportional to 213,095.60, 319,528.20 and 88,449.20

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Solution

The fourth proportional to 213,095.60, 319,528.20 and 88,449.20 is: 132,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,095.60 : 319,528.20 = 88,449.20 : x
  2. Step 2: Convert to fraction form
    213,095.60/319,528.20 = 88,449.20/x
  3. Step 3: Cross multiply
    213,095.60x = 319,528.20 × 88,449.20
  4. Step 4: Simplify right side
    213,095.60x = 28,262,013,667.44
  5. Step 5: Solve for x
    x = 28,262,013,667.44/213,095.60
  6. Step 6: Final answer
    x = 132,625.98

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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.