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Finding the Fourth Proportional to 260,362, 390,581.92 and 94,188.88

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Solution

The fourth proportional to 260,362, 390,581.92 and 94,188.88 is: 141,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,362 : 390,581.92 = 94,188.88 : x
  2. Step 2: Convert to fraction form
    260,362/390,581.92 = 94,188.88/x
  3. Step 3: Cross multiply
    260,362x = 390,581.92 × 94,188.88
  4. Step 4: Simplify right side
    260,362x = 36,788,473,593.05
  5. Step 5: Solve for x
    x = 36,788,473,593.05/260,362
  6. Step 6: Final answer
    x = 141,297.40

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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.