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Finding the Fourth Proportional to 240,345.31, 360,518.73 and 90,545.37

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Solution

The fourth proportional to 240,345.31, 360,518.73 and 90,545.37 is: 135,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,345.31 : 360,518.73 = 90,545.37 : x
  2. Step 2: Convert to fraction form
    240,345.31/360,518.73 = 90,545.37/x
  3. Step 3: Cross multiply
    240,345.31x = 360,518.73 × 90,545.37
  4. Step 4: Simplify right side
    240,345.31x = 32,643,301,799.78
  5. Step 5: Solve for x
    x = 32,643,301,799.78/240,345.31
  6. Step 6: Final answer
    x = 135,818.34

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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.