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Finding the Fourth Proportional to 288,008.53, 432,085.70 and 88,339.08

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Solution

The fourth proportional to 288,008.53, 432,085.70 and 88,339.08 is: 132,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,008.53 : 432,085.70 = 88,339.08 : x
  2. Step 2: Convert to fraction form
    288,008.53/432,085.70 = 88,339.08/x
  3. Step 3: Cross multiply
    288,008.53x = 432,085.70 × 88,339.08
  4. Step 4: Simplify right side
    288,008.53x = 38,170,053,219.16
  5. Step 5: Solve for x
    x = 38,170,053,219.16/288,008.53
  6. Step 6: Final answer
    x = 132,530.98

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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.