Home / 261,945.12-392,914.80-156,793.44

Finding the Fourth Proportional to 261,945.12, 392,914.80 and 156,793.44

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Solution

The fourth proportional to 261,945.12, 392,914.80 and 156,793.44 is: 235,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,945.12 : 392,914.80 = 156,793.44 : x
  2. Step 2: Convert to fraction form
    261,945.12/392,914.80 = 156,793.44/x
  3. Step 3: Cross multiply
    261,945.12x = 392,914.80 × 156,793.44
  4. Step 4: Simplify right side
    261,945.12x = 61,606,463,118.91
  5. Step 5: Solve for x
    x = 61,606,463,118.91/261,945.12
  6. Step 6: Final answer
    x = 235,188.44

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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.