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Finding the Fourth Proportional to 275,416.80, 413,708.40 and 265,502.40

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Solution

The fourth proportional to 275,416.80, 413,708.40 and 265,502.40 is: 398,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,416.80 : 413,708.40 = 265,502.40 : x
  2. Step 2: Convert to fraction form
    275,416.80/413,708.40 = 265,502.40/x
  3. Step 3: Cross multiply
    275,416.80x = 413,708.40 × 265,502.40
  4. Step 4: Simplify right side
    275,416.80x = 109,840,573,100.16
  5. Step 5: Solve for x
    x = 109,840,573,100.16/275,416.80
  6. Step 6: Final answer
    x = 398,815.81

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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.