Home / 336,872.20-505,502.70-126,531.40

Finding the Fourth Proportional to 336,872.20, 505,502.70 and 126,531.40

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Solution

The fourth proportional to 336,872.20, 505,502.70 and 126,531.40 is: 189,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,872.20 : 505,502.70 = 126,531.40 : x
  2. Step 2: Convert to fraction form
    336,872.20/505,502.70 = 126,531.40/x
  3. Step 3: Cross multiply
    336,872.20x = 505,502.70 × 126,531.40
  4. Step 4: Simplify right side
    336,872.20x = 63,961,964,334.78
  5. Step 5: Solve for x
    x = 63,961,964,334.78/336,872.20
  6. Step 6: Final answer
    x = 189,870.12

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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.