Home / 279,318.06-385,459.02-151,990.92

Finding the Fourth Proportional to 279,318.06, 385,459.02 and 151,990.92

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Solution

The fourth proportional to 279,318.06, 385,459.02 and 151,990.92 is: 209,747.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,318.06 : 385,459.02 = 151,990.92 : x
  2. Step 2: Convert to fraction form
    279,318.06/385,459.02 = 151,990.92/x
  3. Step 3: Cross multiply
    279,318.06x = 385,459.02 × 151,990.92
  4. Step 4: Simplify right side
    279,318.06x = 58,586,271,072.10
  5. Step 5: Solve for x
    x = 58,586,271,072.10/279,318.06
  6. Step 6: Final answer
    x = 209,747.52

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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.