Home / 423,945.90-635,724.45-187,166.70

Finding the Fourth Proportional to 423,945.90, 635,724.45 and 187,166.70

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Solution

The fourth proportional to 423,945.90, 635,724.45 and 187,166.70 is: 280,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,945.90 : 635,724.45 = 187,166.70 : x
  2. Step 2: Convert to fraction form
    423,945.90/635,724.45 = 187,166.70/x
  3. Step 3: Cross multiply
    423,945.90x = 635,724.45 × 187,166.70
  4. Step 4: Simplify right side
    423,945.90x = 118,986,447,415.82
  5. Step 5: Solve for x
    x = 118,986,447,415.82/423,945.90
  6. Step 6: Final answer
    x = 280,664.22

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1.5x scale

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.