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Finding the Fourth Proportional to 240,345.81, 360,519.48 and 90,545.87

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Solution

The fourth proportional to 240,345.81, 360,519.48 and 90,545.87 is: 135,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,345.81 : 360,519.48 = 90,545.87 : x
  2. Step 2: Convert to fraction form
    240,345.81/360,519.48 = 90,545.87/x
  3. Step 3: Cross multiply
    240,345.81x = 360,519.48 × 90,545.87
  4. Step 4: Simplify right side
    240,345.81x = 32,643,549,968.55
  5. Step 5: Solve for x
    x = 32,643,549,968.55/240,345.81
  6. Step 6: Final answer
    x = 135,819.09

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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.