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Finding the Fourth Proportional to 288,172.56, 432,165.40 and 95,995.74

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Solution

The fourth proportional to 288,172.56, 432,165.40 and 95,995.74 is: 143,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,172.56 : 432,165.40 = 95,995.74 : x
  2. Step 2: Convert to fraction form
    288,172.56/432,165.40 = 95,995.74/x
  3. Step 3: Cross multiply
    288,172.56x = 432,165.40 × 95,995.74
  4. Step 4: Simplify right side
    288,172.56x = 41,486,037,375.40
  5. Step 5: Solve for x
    x = 41,486,037,375.40/288,172.56
  6. Step 6: Final answer
    x = 143,962.48

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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.