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Finding the Fourth Proportional to 360,372.68, 497,328.30 and 239,305.20

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Solution

The fourth proportional to 360,372.68, 497,328.30 and 239,305.20 is: 330,250.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,372.68 : 497,328.30 = 239,305.20 : x
  2. Step 2: Convert to fraction form
    360,372.68/497,328.30 = 239,305.20/x
  3. Step 3: Cross multiply
    360,372.68x = 497,328.30 × 239,305.20
  4. Step 4: Simplify right side
    360,372.68x = 119,013,248,297.16
  5. Step 5: Solve for x
    x = 119,013,248,297.16/360,372.68
  6. Step 6: Final answer
    x = 330,250.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.