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Finding the Fourth Proportional to 269,989.60, 372,522 and 156,745.12

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Solution

The fourth proportional to 269,989.60, 372,522 and 156,745.12 is: 216,271.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,989.60 : 372,522 = 156,745.12 : x
  2. Step 2: Convert to fraction form
    269,989.60/372,522 = 156,745.12/x
  3. Step 3: Cross multiply
    269,989.60x = 372,522 × 156,745.12
  4. Step 4: Simplify right side
    269,989.60x = 58,391,005,592.64
  5. Step 5: Solve for x
    x = 58,391,005,592.64/269,989.60
  6. Step 6: Final answer
    x = 216,271.31

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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.