Home / 261,973.40-392,960.10-156,738.20

Finding the Fourth Proportional to 261,973.40, 392,960.10 and 156,738.20

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Solution

The fourth proportional to 261,973.40, 392,960.10 and 156,738.20 is: 235,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,973.40 : 392,960.10 = 156,738.20 : x
  2. Step 2: Convert to fraction form
    261,973.40/392,960.10 = 156,738.20/x
  3. Step 3: Cross multiply
    261,973.40x = 392,960.10 × 156,738.20
  4. Step 4: Simplify right side
    261,973.40x = 61,591,858,745.82
  5. Step 5: Solve for x
    x = 61,591,858,745.82/261,973.40
  6. Step 6: Final answer
    x = 235,107.30

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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.