Home / 212,400.52-318,524.90-70,219.55

Finding the Fourth Proportional to 212,400.52, 318,524.90 and 70,219.55

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Solution

The fourth proportional to 212,400.52, 318,524.90 and 70,219.55 is: 105,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,400.52 : 318,524.90 = 70,219.55 : x
  2. Step 2: Convert to fraction form
    212,400.52/318,524.90 = 70,219.55/x
  3. Step 3: Cross multiply
    212,400.52x = 318,524.90 × 70,219.55
  4. Step 4: Simplify right side
    212,400.52x = 22,366,675,587.01
  5. Step 5: Solve for x
    x = 22,366,675,587.01/212,400.52
  6. Step 6: Final answer
    x = 105,304.24

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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.