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Finding the Fourth Proportional to 281,302.74, 421,952.85 and 115,090.74

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Solution

The fourth proportional to 281,302.74, 421,952.85 and 115,090.74 is: 172,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,302.74 : 421,952.85 = 115,090.74 : x
  2. Step 2: Convert to fraction form
    281,302.74/421,952.85 = 115,090.74/x
  3. Step 3: Cross multiply
    281,302.74x = 421,952.85 × 115,090.74
  4. Step 4: Simplify right side
    281,302.74x = 48,562,865,751.61
  5. Step 5: Solve for x
    x = 48,562,865,751.61/281,302.74
  6. Step 6: Final answer
    x = 172,635.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.