Home / 292,439.89-438,701.62-90,053.09

Finding the Fourth Proportional to 292,439.89, 438,701.62 and 90,053.09

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Solution

The fourth proportional to 292,439.89, 438,701.62 and 90,053.09 is: 135,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,439.89 : 438,701.62 = 90,053.09 : x
  2. Step 2: Convert to fraction form
    292,439.89/438,701.62 = 90,053.09/x
  3. Step 3: Cross multiply
    292,439.89x = 438,701.62 × 90,053.09
  4. Step 4: Simplify right side
    292,439.89x = 39,506,436,469.01
  5. Step 5: Solve for x
    x = 39,506,436,469.01/292,439.89
  6. Step 6: Final answer
    x = 135,092.50

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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.