Home / 280,544.70-420,580.17-122,653.02

Finding the Fourth Proportional to 280,544.70, 420,580.17 and 122,653.02

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Solution

The fourth proportional to 280,544.70, 420,580.17 and 122,653.02 is: 183,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,544.70 : 420,580.17 = 122,653.02 : x
  2. Step 2: Convert to fraction form
    280,544.70/420,580.17 = 122,653.02/x
  3. Step 3: Cross multiply
    280,544.70x = 420,580.17 × 122,653.02
  4. Step 4: Simplify right side
    280,544.70x = 51,585,428,002.61
  5. Step 5: Solve for x
    x = 51,585,428,002.61/280,544.70
  6. Step 6: Final answer
    x = 183,875.97

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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.