Home / 279,454.05-385,644.24-152,129.34

Finding the Fourth Proportional to 279,454.05, 385,644.24 and 152,129.34

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Solution

The fourth proportional to 279,454.05, 385,644.24 and 152,129.34 is: 209,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,454.05 : 385,644.24 = 152,129.34 : x
  2. Step 2: Convert to fraction form
    279,454.05/385,644.24 = 152,129.34/x
  3. Step 3: Cross multiply
    279,454.05x = 385,644.24 × 152,129.34
  4. Step 4: Simplify right side
    279,454.05x = 58,667,803,706.00
  5. Step 5: Solve for x
    x = 58,667,803,706.00/279,454.05
  6. Step 6: Final answer
    x = 209,937.21

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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.