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Finding the Fourth Proportional to 212,655.89, 293,587.31 and 141,132.89

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Solution

The fourth proportional to 212,655.89, 293,587.31 and 141,132.89 is: 194,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,655.89 : 293,587.31 = 141,132.89 : x
  2. Step 2: Convert to fraction form
    212,655.89/293,587.31 = 141,132.89/x
  3. Step 3: Cross multiply
    212,655.89x = 293,587.31 × 141,132.89
  4. Step 4: Simplify right side
    212,655.89x = 41,434,825,527.63
  5. Step 5: Solve for x
    x = 41,434,825,527.63/212,655.89
  6. Step 6: Final answer
    x = 194,844.48

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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.