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Finding the Fourth Proportional to 300,587.82, 450,889.92 and 90,225.78

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Solution

The fourth proportional to 300,587.82, 450,889.92 and 90,225.78 is: 135,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,587.82 : 450,889.92 = 90,225.78 : x
  2. Step 2: Convert to fraction form
    300,587.82/450,889.92 = 90,225.78/x
  3. Step 3: Cross multiply
    300,587.82x = 450,889.92 × 90,225.78
  4. Step 4: Simplify right side
    300,587.82x = 40,681,894,726.14
  5. Step 5: Solve for x
    x = 40,681,894,726.14/300,587.82
  6. Step 6: Final answer
    x = 135,341.13

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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.