Home / 261,822.20-361,314.63-142,590.20

Finding the Fourth Proportional to 261,822.20, 361,314.63 and 142,590.20

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Solution

The fourth proportional to 261,822.20, 361,314.63 and 142,590.20 is: 196,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,822.20 : 361,314.63 = 142,590.20 : x
  2. Step 2: Convert to fraction form
    261,822.20/361,314.63 = 142,590.20/x
  3. Step 3: Cross multiply
    261,822.20x = 361,314.63 × 142,590.20
  4. Step 4: Simplify right side
    261,822.20x = 51,519,923,548.05
  5. Step 5: Solve for x
    x = 51,519,923,548.05/261,822.20
  6. Step 6: Final answer
    x = 196,774.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.