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Finding the Fourth Proportional to 239,433.40, 359,150.10 and 219,215.80

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Solution

The fourth proportional to 239,433.40, 359,150.10 and 219,215.80 is: 328,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,433.40 : 359,150.10 = 219,215.80 : x
  2. Step 2: Convert to fraction form
    239,433.40/359,150.10 = 219,215.80/x
  3. Step 3: Cross multiply
    239,433.40x = 359,150.10 × 219,215.80
  4. Step 4: Simplify right side
    239,433.40x = 78,731,376,491.58
  5. Step 5: Solve for x
    x = 78,731,376,491.58/239,433.40
  6. Step 6: Final answer
    x = 328,823.70

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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.