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Finding the Fourth Proportional to 243,595.22, 336,155.47 and 136,177.88

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Solution

The fourth proportional to 243,595.22, 336,155.47 and 136,177.88 is: 187,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,595.22 : 336,155.47 = 136,177.88 : x
  2. Step 2: Convert to fraction form
    243,595.22/336,155.47 = 136,177.88/x
  3. Step 3: Cross multiply
    243,595.22x = 336,155.47 × 136,177.88
  4. Step 4: Simplify right side
    243,595.22x = 45,776,939,255.00
  5. Step 5: Solve for x
    x = 45,776,939,255.00/243,595.22
  6. Step 6: Final answer
    x = 187,922.16

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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.