Home / 420,902.07-581,036.03-268,149.71

Finding the Fourth Proportional to 420,902.07, 581,036.03 and 268,149.71

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Solution

The fourth proportional to 420,902.07, 581,036.03 and 268,149.71 is: 370,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,902.07 : 581,036.03 = 268,149.71 : x
  2. Step 2: Convert to fraction form
    420,902.07/581,036.03 = 268,149.71/x
  3. Step 3: Cross multiply
    420,902.07x = 581,036.03 × 268,149.71
  4. Step 4: Simplify right side
    420,902.07x = 155,804,639,703.68
  5. Step 5: Solve for x
    x = 155,804,639,703.68/420,902.07
  6. Step 6: Final answer
    x = 370,168.39

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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.