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Finding the Fourth Proportional to 360,380.68, 497,339.34 and 239,313.20

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Solution

The fourth proportional to 360,380.68, 497,339.34 and 239,313.20 is: 330,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,380.68 : 497,339.34 = 239,313.20 : x
  2. Step 2: Convert to fraction form
    360,380.68/497,339.34 = 239,313.20/x
  3. Step 3: Cross multiply
    360,380.68x = 497,339.34 × 239,313.20
  4. Step 4: Simplify right side
    360,380.68x = 119,019,868,941.29
  5. Step 5: Solve for x
    x = 119,019,868,941.29/360,380.68
  6. Step 6: Final answer
    x = 330,261.51

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Double scale
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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.