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Finding the Fourth Proportional to 334,555.80, 501,667.65 and 121,315.20

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Solution

The fourth proportional to 334,555.80, 501,667.65 and 121,315.20 is: 181,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,555.80 : 501,667.65 = 121,315.20 : x
  2. Step 2: Convert to fraction form
    334,555.80/501,667.65 = 121,315.20/x
  3. Step 3: Cross multiply
    334,555.80x = 501,667.65 × 121,315.20
  4. Step 4: Simplify right side
    334,555.80x = 60,859,911,293.28
  5. Step 5: Solve for x
    x = 60,859,911,293.28/334,555.80
  6. Step 6: Final answer
    x = 181,912.59

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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.