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Finding the Fourth Proportional to 243,488.88, 336,048.03 and 140,120.96

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Solution

The fourth proportional to 243,488.88, 336,048.03 and 140,120.96 is: 193,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,488.88 : 336,048.03 = 140,120.96 : x
  2. Step 2: Convert to fraction form
    243,488.88/336,048.03 = 140,120.96/x
  3. Step 3: Cross multiply
    243,488.88x = 336,048.03 × 140,120.96
  4. Step 4: Simplify right side
    243,488.88x = 47,087,370,889.47
  5. Step 5: Solve for x
    x = 47,087,370,889.47/243,488.88
  6. Step 6: Final answer
    x = 193,386.12

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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.