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Finding the Fourth Proportional to 288,480.65, 432,800.97 and 120,080.30

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Solution

The fourth proportional to 288,480.65, 432,800.97 and 120,080.30 is: 180,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,480.65 : 432,800.97 = 120,080.30 : x
  2. Step 2: Convert to fraction form
    288,480.65/432,800.97 = 120,080.30/x
  3. Step 3: Cross multiply
    288,480.65x = 432,800.97 × 120,080.30
  4. Step 4: Simplify right side
    288,480.65x = 51,970,869,717.49
  5. Step 5: Solve for x
    x = 51,970,869,717.49/288,480.65
  6. Step 6: Final answer
    x = 180,153.75

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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.