Home / 218,966.17-302,173.37-123,472.89

Finding the Fourth Proportional to 218,966.17, 302,173.37 and 123,472.89

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Solution

The fourth proportional to 218,966.17, 302,173.37 and 123,472.89 is: 170,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,966.17 : 302,173.37 = 123,472.89 : x
  2. Step 2: Convert to fraction form
    218,966.17/302,173.37 = 123,472.89/x
  3. Step 3: Cross multiply
    218,966.17x = 302,173.37 × 123,472.89
  4. Step 4: Simplify right side
    218,966.17x = 37,310,219,274.94
  5. Step 5: Solve for x
    x = 37,310,219,274.94/218,966.17
  6. Step 6: Final answer
    x = 170,392.62

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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.