Home / 251,557.70-347,155.02-138,380.45

Finding the Fourth Proportional to 251,557.70, 347,155.02 and 138,380.45

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Solution

The fourth proportional to 251,557.70, 347,155.02 and 138,380.45 is: 190,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,557.70 : 347,155.02 = 138,380.45 : x
  2. Step 2: Convert to fraction form
    251,557.70/347,155.02 = 138,380.45/x
  3. Step 3: Cross multiply
    251,557.70x = 347,155.02 × 138,380.45
  4. Step 4: Simplify right side
    251,557.70x = 48,039,466,151.58
  5. Step 5: Solve for x
    x = 48,039,466,151.58/251,557.70
  6. Step 6: Final answer
    x = 190,967.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.