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Finding the Fourth Proportional to 213,230.16, 319,672.44 and 88,664.40

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Solution

The fourth proportional to 213,230.16, 319,672.44 and 88,664.40 is: 132,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,230.16 : 319,672.44 = 88,664.40 : x
  2. Step 2: Convert to fraction form
    213,230.16/319,672.44 = 88,664.40/x
  3. Step 3: Cross multiply
    213,230.16x = 319,672.44 × 88,664.40
  4. Step 4: Simplify right side
    213,230.16x = 28,343,565,089.14
  5. Step 5: Solve for x
    x = 28,343,565,089.14/213,230.16
  6. Step 6: Final answer
    x = 132,924.75

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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.