Home / 258,001.68-386,973.28-89,490.88

Finding the Fourth Proportional to 258,001.68, 386,973.28 and 89,490.88

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Solution

The fourth proportional to 258,001.68, 386,973.28 and 89,490.88 is: 134,226.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,001.68 : 386,973.28 = 89,490.88 : x
  2. Step 2: Convert to fraction form
    258,001.68/386,973.28 = 89,490.88/x
  3. Step 3: Cross multiply
    258,001.68x = 386,973.28 × 89,490.88
  4. Step 4: Simplify right side
    258,001.68x = 34,630,579,363.69
  5. Step 5: Solve for x
    x = 34,630,579,363.69/258,001.68
  6. Step 6: Final answer
    x = 134,226.18

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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.