Home / 279,615.65-385,869.52-152,291.24

Finding the Fourth Proportional to 279,615.65, 385,869.52 and 152,291.24

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Solution

The fourth proportional to 279,615.65, 385,869.52 and 152,291.24 is: 210,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,615.65 : 385,869.52 = 152,291.24 : x
  2. Step 2: Convert to fraction form
    279,615.65/385,869.52 = 152,291.24/x
  3. Step 3: Cross multiply
    279,615.65x = 385,869.52 × 152,291.24
  4. Step 4: Simplify right side
    279,615.65x = 58,764,547,387.03
  5. Step 5: Solve for x
    x = 58,764,547,387.03/279,615.65
  6. Step 6: Final answer
    x = 210,161.87

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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.