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Finding the Fourth Proportional to 288,129.20, 432,064.20 and 110,577.20

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Solution

The fourth proportional to 288,129.20, 432,064.20 and 110,577.20 is: 165,816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,129.20 : 432,064.20 = 110,577.20 : x
  2. Step 2: Convert to fraction form
    288,129.20/432,064.20 = 110,577.20/x
  3. Step 3: Cross multiply
    288,129.20x = 432,064.20 × 110,577.20
  4. Step 4: Simplify right side
    288,129.20x = 47,776,449,456.24
  5. Step 5: Solve for x
    x = 47,776,449,456.24/288,129.20
  6. Step 6: Final answer
    x = 165,816.06

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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.