Home / 262,923.40-394,385.10-157,688.20

Finding the Fourth Proportional to 262,923.40, 394,385.10 and 157,688.20

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Solution

The fourth proportional to 262,923.40, 394,385.10 and 157,688.20 is: 236,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,923.40 : 394,385.10 = 157,688.20 : x
  2. Step 2: Convert to fraction form
    262,923.40/394,385.10 = 157,688.20/x
  3. Step 3: Cross multiply
    262,923.40x = 394,385.10 × 157,688.20
  4. Step 4: Simplify right side
    262,923.40x = 62,189,876,525.82
  5. Step 5: Solve for x
    x = 62,189,876,525.82/262,923.40
  6. Step 6: Final answer
    x = 236,532.30

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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.