Home / 279,055.68-385,094.19-151,731.33

Finding the Fourth Proportional to 279,055.68, 385,094.19 and 151,731.33

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Solution

The fourth proportional to 279,055.68, 385,094.19 and 151,731.33 is: 209,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,055.68 : 385,094.19 = 151,731.33 : x
  2. Step 2: Convert to fraction form
    279,055.68/385,094.19 = 151,731.33/x
  3. Step 3: Cross multiply
    279,055.68x = 385,094.19 × 151,731.33
  4. Step 4: Simplify right side
    279,055.68x = 58,430,853,623.97
  5. Step 5: Solve for x
    x = 58,430,853,623.97/279,055.68
  6. Step 6: Final answer
    x = 209,387.80

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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.