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Finding the Fourth Proportional to 278,029.35, 383,670.21 and 150,702.21

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Solution

The fourth proportional to 278,029.35, 383,670.21 and 150,702.21 is: 207,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,029.35 : 383,670.21 = 150,702.21 : x
  2. Step 2: Convert to fraction form
    278,029.35/383,670.21 = 150,702.21/x
  3. Step 3: Cross multiply
    278,029.35x = 383,670.21 × 150,702.21
  4. Step 4: Simplify right side
    278,029.35x = 57,819,948,558.16
  5. Step 5: Solve for x
    x = 57,819,948,558.16/278,029.35
  6. Step 6: Final answer
    x = 207,963.47

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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.