Home / 317,521.03-438,178.85-179,697.46

Finding the Fourth Proportional to 317,521.03, 438,178.85 and 179,697.46

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Solution

The fourth proportional to 317,521.03, 438,178.85 and 179,697.46 is: 247,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,521.03 : 438,178.85 = 179,697.46 : x
  2. Step 2: Convert to fraction form
    317,521.03/438,178.85 = 179,697.46/x
  3. Step 3: Cross multiply
    317,521.03x = 438,178.85 × 179,697.46
  4. Step 4: Simplify right side
    317,521.03x = 78,739,625,401.42
  5. Step 5: Solve for x
    x = 78,739,625,401.42/317,521.03
  6. Step 6: Final answer
    x = 247,982.39

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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.