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Finding the Fourth Proportional to 288,449.19, 432,714.78 and 88,786.21

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Solution

The fourth proportional to 288,449.19, 432,714.78 and 88,786.21 is: 133,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,449.19 : 432,714.78 = 88,786.21 : x
  2. Step 2: Convert to fraction form
    288,449.19/432,714.78 = 88,786.21/x
  3. Step 3: Cross multiply
    288,449.19x = 432,714.78 × 88,786.21
  4. Step 4: Simplify right side
    288,449.19x = 38,419,105,327.18
  5. Step 5: Solve for x
    x = 38,419,105,327.18/288,449.19
  6. Step 6: Final answer
    x = 133,191.93

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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.