Home / 292,972.02-439,463.34-103,427.78

Finding the Fourth Proportional to 292,972.02, 439,463.34 and 103,427.78

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Solution

The fourth proportional to 292,972.02, 439,463.34 and 103,427.78 is: 155,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,972.02 : 439,463.34 = 103,427.78 : x
  2. Step 2: Convert to fraction form
    292,972.02/439,463.34 = 103,427.78/x
  3. Step 3: Cross multiply
    292,972.02x = 439,463.34 × 103,427.78
  4. Step 4: Simplify right side
    292,972.02x = 45,452,715,450.27
  5. Step 5: Solve for x
    x = 45,452,715,450.27/292,972.02
  6. Step 6: Final answer
    x = 155,143.54

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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.