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Finding the Fourth Proportional to 270,040.40, 405,070.32 and 101,545.28

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Solution

The fourth proportional to 270,040.40, 405,070.32 and 101,545.28 is: 152,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,040.40 : 405,070.32 = 101,545.28 : x
  2. Step 2: Convert to fraction form
    270,040.40/405,070.32 = 101,545.28/x
  3. Step 3: Cross multiply
    270,040.40x = 405,070.32 × 101,545.28
  4. Step 4: Simplify right side
    270,040.40x = 41,132,979,064.09
  5. Step 5: Solve for x
    x = 41,132,979,064.09/270,040.40
  6. Step 6: Final answer
    x = 152,321.58

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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.