Home / 261,454.10-392,181.15-103,601.30

Finding the Fourth Proportional to 261,454.10, 392,181.15 and 103,601.30

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Solution

The fourth proportional to 261,454.10, 392,181.15 and 103,601.30 is: 155,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,454.10 : 392,181.15 = 103,601.30 : x
  2. Step 2: Convert to fraction form
    261,454.10/392,181.15 = 103,601.30/x
  3. Step 3: Cross multiply
    261,454.10x = 392,181.15 × 103,601.30
  4. Step 4: Simplify right side
    261,454.10x = 40,630,476,975.50
  5. Step 5: Solve for x
    x = 40,630,476,975.50/261,454.10
  6. Step 6: Final answer
    x = 155,401.95

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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.