Home / 218,821.23-301,964.54-123,347.74

Finding the Fourth Proportional to 218,821.23, 301,964.54 and 123,347.74

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Solution

The fourth proportional to 218,821.23, 301,964.54 and 123,347.74 is: 170,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,821.23 : 301,964.54 = 123,347.74 : x
  2. Step 2: Convert to fraction form
    218,821.23/301,964.54 = 123,347.74/x
  3. Step 3: Cross multiply
    218,821.23x = 301,964.54 × 123,347.74
  4. Step 4: Simplify right side
    218,821.23x = 37,246,643,569.14
  5. Step 5: Solve for x
    x = 37,246,643,569.14/218,821.23
  6. Step 6: Final answer
    x = 170,214.94

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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.