Home / 212,050.27-318,075.20-54,278.47

Finding the Fourth Proportional to 212,050.27, 318,075.20 and 54,278.47

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Solution

The fourth proportional to 212,050.27, 318,075.20 and 54,278.47 is: 81,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,050.27 : 318,075.20 = 54,278.47 : x
  2. Step 2: Convert to fraction form
    212,050.27/318,075.20 = 54,278.47/x
  3. Step 3: Cross multiply
    212,050.27x = 318,075.20 × 54,278.47
  4. Step 4: Simplify right side
    212,050.27x = 17,264,633,339.18
  5. Step 5: Solve for x
    x = 17,264,633,339.18/212,050.27
  6. Step 6: Final answer
    x = 81,417.65

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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.