Home / 258,251.28-356,386.50-143,526.30

Finding the Fourth Proportional to 258,251.28, 356,386.50 and 143,526.30

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Solution

The fourth proportional to 258,251.28, 356,386.50 and 143,526.30 is: 198,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,251.28 : 356,386.50 = 143,526.30 : x
  2. Step 2: Convert to fraction form
    258,251.28/356,386.50 = 143,526.30/x
  3. Step 3: Cross multiply
    258,251.28x = 356,386.50 × 143,526.30
  4. Step 4: Simplify right side
    258,251.28x = 51,150,835,714.95
  5. Step 5: Solve for x
    x = 51,150,835,714.95/258,251.28
  6. Step 6: Final answer
    x = 198,066.15

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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.