Home / 578,031.78-867,031.41-157,311.30

Finding the Fourth Proportional to 578,031.78, 867,031.41 and 157,311.30

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Solution

The fourth proportional to 578,031.78, 867,031.41 and 157,311.30 is: 235,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,031.78 : 867,031.41 = 157,311.30 : x
  2. Step 2: Convert to fraction form
    578,031.78/867,031.41 = 157,311.30/x
  3. Step 3: Cross multiply
    578,031.78x = 867,031.41 × 157,311.30
  4. Step 4: Simplify right side
    578,031.78x = 136,393,838,247.93
  5. Step 5: Solve for x
    x = 136,393,838,247.93/578,031.78
  6. Step 6: Final answer
    x = 235,962.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.