Home / 279,034.10-385,056.53-151,705.30

Finding the Fourth Proportional to 279,034.10, 385,056.53 and 151,705.30

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Solution

The fourth proportional to 279,034.10, 385,056.53 and 151,705.30 is: 209,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,034.10 : 385,056.53 = 151,705.30 : x
  2. Step 2: Convert to fraction form
    279,034.10/385,056.53 = 151,705.30/x
  3. Step 3: Cross multiply
    279,034.10x = 385,056.53 × 151,705.30
  4. Step 4: Simplify right side
    279,034.10x = 58,415,116,400.61
  5. Step 5: Solve for x
    x = 58,415,116,400.61/279,034.10
  6. Step 6: Final answer
    x = 209,347.59

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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.