Home / 279,689.04-385,982.58-152,371.62

Finding the Fourth Proportional to 279,689.04, 385,982.58 and 152,371.62

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Solution

The fourth proportional to 279,689.04, 385,982.58 and 152,371.62 is: 210,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,689.04 : 385,982.58 = 152,371.62 : x
  2. Step 2: Convert to fraction form
    279,689.04/385,982.58 = 152,371.62/x
  3. Step 3: Cross multiply
    279,689.04x = 385,982.58 × 152,371.62
  4. Step 4: Simplify right side
    279,689.04x = 58,812,791,006.38
  5. Step 5: Solve for x
    x = 58,812,791,006.38/279,689.04
  6. Step 6: Final answer
    x = 210,279.21

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1.5x scale

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.