Home / 212,248.92-318,373.38-145,486.65

Finding the Fourth Proportional to 212,248.92, 318,373.38 and 145,486.65

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Solution

The fourth proportional to 212,248.92, 318,373.38 and 145,486.65 is: 218,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,248.92 : 318,373.38 = 145,486.65 : x
  2. Step 2: Convert to fraction form
    212,248.92/318,373.38 = 145,486.65/x
  3. Step 3: Cross multiply
    212,248.92x = 318,373.38 × 145,486.65
  4. Step 4: Simplify right side
    212,248.92x = 46,319,076,505.38
  5. Step 5: Solve for x
    x = 46,319,076,505.38/212,248.92
  6. Step 6: Final answer
    x = 218,229.98

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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.