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Finding the Fourth Proportional to 360,422.16, 497,396.70 and 239,354.70

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Solution

The fourth proportional to 360,422.16, 497,396.70 and 239,354.70 is: 330,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,422.16 : 497,396.70 = 239,354.70 : x
  2. Step 2: Convert to fraction form
    360,422.16/497,396.70 = 239,354.70/x
  3. Step 3: Cross multiply
    360,422.16x = 497,396.70 × 239,354.70
  4. Step 4: Simplify right side
    360,422.16x = 119,054,237,909.49
  5. Step 5: Solve for x
    x = 119,054,237,909.49/360,422.16
  6. Step 6: Final answer
    x = 330,318.86

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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.