Home / 212,048.96-318,066.15-54,278.78

Finding the Fourth Proportional to 212,048.96, 318,066.15 and 54,278.78

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Solution

The fourth proportional to 212,048.96, 318,066.15 and 54,278.78 is: 81,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,048.96 : 318,066.15 = 54,278.78 : x
  2. Step 2: Convert to fraction form
    212,048.96/318,066.15 = 54,278.78/x
  3. Step 3: Cross multiply
    212,048.96x = 318,066.15 × 54,278.78
  4. Step 4: Simplify right side
    212,048.96x = 17,264,242,581.30
  5. Step 5: Solve for x
    x = 17,264,242,581.30/212,048.96
  6. Step 6: Final answer
    x = 81,416.30

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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.