Home / 218,558.07-301,631.73-127,908.63

Finding the Fourth Proportional to 218,558.07, 301,631.73 and 127,908.63

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Solution

The fourth proportional to 218,558.07, 301,631.73 and 127,908.63 is: 176,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,558.07 : 301,631.73 = 127,908.63 : x
  2. Step 2: Convert to fraction form
    218,558.07/301,631.73 = 127,908.63/x
  3. Step 3: Cross multiply
    218,558.07x = 301,631.73 × 127,908.63
  4. Step 4: Simplify right side
    218,558.07x = 38,581,301,348.83
  5. Step 5: Solve for x
    x = 38,581,301,348.83/218,558.07
  6. Step 6: Final answer
    x = 176,526.55

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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.