Home / 279,108.02-385,160.05-158,260.07

Finding the Fourth Proportional to 279,108.02, 385,160.05 and 158,260.07

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Solution

The fourth proportional to 279,108.02, 385,160.05 and 158,260.07 is: 218,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,108.02 : 385,160.05 = 158,260.07 : x
  2. Step 2: Convert to fraction form
    279,108.02/385,160.05 = 158,260.07/x
  3. Step 3: Cross multiply
    279,108.02x = 385,160.05 × 158,260.07
  4. Step 4: Simplify right side
    279,108.02x = 60,955,456,474.20
  5. Step 5: Solve for x
    x = 60,955,456,474.20/279,108.02
  6. Step 6: Final answer
    x = 218,393.78

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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.