Home / 402,126.60-554,932.70-218,363.54

Finding the Fourth Proportional to 402,126.60, 554,932.70 and 218,363.54

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Solution

The fourth proportional to 402,126.60, 554,932.70 and 218,363.54 is: 301,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,126.60 : 554,932.70 = 218,363.54 : x
  2. Step 2: Convert to fraction form
    402,126.60/554,932.70 = 218,363.54/x
  3. Step 3: Cross multiply
    402,126.60x = 554,932.70 × 218,363.54
  4. Step 4: Simplify right side
    402,126.60x = 121,177,065,240.23
  5. Step 5: Solve for x
    x = 121,177,065,240.23/402,126.60
  6. Step 6: Final answer
    x = 301,340.58

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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.