Home / 212,301.45-318,024.76-98,288.55

Finding the Fourth Proportional to 212,301.45, 318,024.76 and 98,288.55

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Solution

The fourth proportional to 212,301.45, 318,024.76 and 98,288.55 is: 147,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,301.45 : 318,024.76 = 98,288.55 : x
  2. Step 2: Convert to fraction form
    212,301.45/318,024.76 = 98,288.55/x
  3. Step 3: Cross multiply
    212,301.45x = 318,024.76 × 98,288.55
  4. Step 4: Simplify right side
    212,301.45x = 31,258,192,524.50
  5. Step 5: Solve for x
    x = 31,258,192,524.50/212,301.45
  6. Step 6: Final answer
    x = 147,234.95

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1.5x scale

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.