Home / 279,195.93-385,288.65-151,872.03

Finding the Fourth Proportional to 279,195.93, 385,288.65 and 151,872.03

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Solution

The fourth proportional to 279,195.93, 385,288.65 and 151,872.03 is: 209,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,195.93 : 385,288.65 = 151,872.03 : x
  2. Step 2: Convert to fraction form
    279,195.93/385,288.65 = 151,872.03/x
  3. Step 3: Cross multiply
    279,195.93x = 385,288.65 × 151,872.03
  4. Step 4: Simplify right side
    279,195.93x = 58,514,569,411.46
  5. Step 5: Solve for x
    x = 58,514,569,411.46/279,195.93
  6. Step 6: Final answer
    x = 209,582.46

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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.