Home / 262,923.20-393,866.40-157,428.80

Finding the Fourth Proportional to 262,923.20, 393,866.40 and 157,428.80

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Solution

The fourth proportional to 262,923.20, 393,866.40 and 157,428.80 is: 235,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,923.20 : 393,866.40 = 157,428.80 : x
  2. Step 2: Convert to fraction form
    262,923.20/393,866.40 = 157,428.80/x
  3. Step 3: Cross multiply
    262,923.20x = 393,866.40 × 157,428.80
  4. Step 4: Simplify right side
    262,923.20x = 62,005,914,712.32
  5. Step 5: Solve for x
    x = 62,005,914,712.32/262,923.20
  6. Step 6: Final answer
    x = 235,832.80

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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.