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Finding the Fourth Proportional to 298,708.20, 448,937.10 and 293,459.40

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Solution

The fourth proportional to 298,708.20, 448,937.10 and 293,459.40 is: 441,048.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,708.20 : 448,937.10 = 293,459.40 : x
  2. Step 2: Convert to fraction form
    298,708.20/448,937.10 = 293,459.40/x
  3. Step 3: Cross multiply
    298,708.20x = 448,937.10 × 293,459.40
  4. Step 4: Simplify right side
    298,708.20x = 131,744,812,003.74
  5. Step 5: Solve for x
    x = 131,744,812,003.74/298,708.20
  6. Step 6: Final answer
    x = 441,048.53

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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.