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Finding the Fourth Proportional to 243,363.80, 335,838.48 and 135,935.30

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Solution

The fourth proportional to 243,363.80, 335,838.48 and 135,935.30 is: 187,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,363.80 : 335,838.48 = 135,935.30 : x
  2. Step 2: Convert to fraction form
    243,363.80/335,838.48 = 135,935.30/x
  3. Step 3: Cross multiply
    243,363.80x = 335,838.48 × 135,935.30
  4. Step 4: Simplify right side
    243,363.80x = 45,652,304,530.34
  5. Step 5: Solve for x
    x = 45,652,304,530.34/243,363.80
  6. Step 6: Final answer
    x = 187,588.72

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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.