Home / 257,264.21-385,690.23-122,260.52

Finding the Fourth Proportional to 257,264.21, 385,690.23 and 122,260.52

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Solution

The fourth proportional to 257,264.21, 385,690.23 and 122,260.52 is: 183,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,264.21 : 385,690.23 = 122,260.52 : x
  2. Step 2: Convert to fraction form
    257,264.21/385,690.23 = 122,260.52/x
  3. Step 3: Cross multiply
    257,264.21x = 385,690.23 × 122,260.52
  4. Step 4: Simplify right side
    257,264.21x = 47,154,689,042.95
  5. Step 5: Solve for x
    x = 47,154,689,042.95/257,264.21
  6. Step 6: Final answer
    x = 183,292.84

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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.