Home / 279,475.45-385,683.05-152,158.03

Finding the Fourth Proportional to 279,475.45, 385,683.05 and 152,158.03

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Solution

The fourth proportional to 279,475.45, 385,683.05 and 152,158.03 is: 209,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,475.45 : 385,683.05 = 152,158.03 : x
  2. Step 2: Convert to fraction form
    279,475.45/385,683.05 = 152,158.03/x
  3. Step 3: Cross multiply
    279,475.45x = 385,683.05 × 152,158.03
  4. Step 4: Simplify right side
    279,475.45x = 58,684,772,508.58
  5. Step 5: Solve for x
    x = 58,684,772,508.58/279,475.45
  6. Step 6: Final answer
    x = 209,981.85

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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.