Home / 212,272.98-318,428.10-54,501.18

Finding the Fourth Proportional to 212,272.98, 318,428.10 and 54,501.18

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Solution

The fourth proportional to 212,272.98, 318,428.10 and 54,501.18 is: 81,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,272.98 : 318,428.10 = 54,501.18 : x
  2. Step 2: Convert to fraction form
    212,272.98/318,428.10 = 54,501.18/x
  3. Step 3: Cross multiply
    212,272.98x = 318,428.10 × 54,501.18
  4. Step 4: Simplify right side
    212,272.98x = 17,354,707,195.16
  5. Step 5: Solve for x
    x = 17,354,707,195.16/212,272.98
  6. Step 6: Final answer
    x = 81,756.55

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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.