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Finding the Fourth Proportional to 288,697.24, 432,919.50 and 153,732.88

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Solution

The fourth proportional to 288,697.24, 432,919.50 and 153,732.88 is: 230,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,697.24 : 432,919.50 = 153,732.88 : x
  2. Step 2: Convert to fraction form
    288,697.24/432,919.50 = 153,732.88/x
  3. Step 3: Cross multiply
    288,697.24x = 432,919.50 × 153,732.88
  4. Step 4: Simplify right side
    288,697.24x = 66,553,961,543.16
  5. Step 5: Solve for x
    x = 66,553,961,543.16/288,697.24
  6. Step 6: Final answer
    x = 230,532.03

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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.