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Finding the Fourth Proportional to 215,655.44, 297,606.47 and 118,862.79

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Solution

The fourth proportional to 215,655.44, 297,606.47 and 118,862.79 is: 164,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,655.44 : 297,606.47 = 118,862.79 : x
  2. Step 2: Convert to fraction form
    215,655.44/297,606.47 = 118,862.79/x
  3. Step 3: Cross multiply
    215,655.44x = 297,606.47 × 118,862.79
  4. Step 4: Simplify right side
    215,655.44x = 35,374,334,751.94
  5. Step 5: Solve for x
    x = 35,374,334,751.94/215,655.44
  6. Step 6: Final answer
    x = 164,031.73

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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.