Home / 292,280.49-438,371.33-81,870.03

Finding the Fourth Proportional to 292,280.49, 438,371.33 and 81,870.03

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Solution

The fourth proportional to 292,280.49, 438,371.33 and 81,870.03 is: 122,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,280.49 : 438,371.33 = 81,870.03 : x
  2. Step 2: Convert to fraction form
    292,280.49/438,371.33 = 81,870.03/x
  3. Step 3: Cross multiply
    292,280.49x = 438,371.33 × 81,870.03
  4. Step 4: Simplify right side
    292,280.49x = 35,889,473,528.89
  5. Step 5: Solve for x
    x = 35,889,473,528.89/292,280.49
  6. Step 6: Final answer
    x = 122,791.20

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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.