Home / 212,000.04-318,011.13-54,229.86

Finding the Fourth Proportional to 212,000.04, 318,011.13 and 54,229.86

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Solution

The fourth proportional to 212,000.04, 318,011.13 and 54,229.86 is: 81,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,000.04 : 318,011.13 = 54,229.86 : x
  2. Step 2: Convert to fraction form
    212,000.04/318,011.13 = 54,229.86/x
  3. Step 3: Cross multiply
    212,000.04x = 318,011.13 × 54,229.86
  4. Step 4: Simplify right side
    212,000.04x = 17,245,699,058.34
  5. Step 5: Solve for x
    x = 17,245,699,058.34/212,000.04
  6. Step 6: Final answer
    x = 81,347.62

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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.