Home / 288,175.12-432,262.50-160,172.80

Finding the Fourth Proportional to 288,175.12, 432,262.50 and 160,172.80

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Solution

The fourth proportional to 288,175.12, 432,262.50 and 160,172.80 is: 240,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,175.12 : 432,262.50 = 160,172.80 : x
  2. Step 2: Convert to fraction form
    288,175.12/432,262.50 = 160,172.80/x
  3. Step 3: Cross multiply
    288,175.12x = 432,262.50 × 160,172.80
  4. Step 4: Simplify right side
    288,175.12x = 69,236,694,960
  5. Step 5: Solve for x
    x = 69,236,694,960/288,175.12
  6. Step 6: Final answer
    x = 240,259.10

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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.