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Finding the Fourth Proportional to 397,208, 548,615.04 and 262,838.72

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Solution

The fourth proportional to 397,208, 548,615.04 and 262,838.72 is: 363,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,208 : 548,615.04 = 262,838.72 : x
  2. Step 2: Convert to fraction form
    397,208/548,615.04 = 262,838.72/x
  3. Step 3: Cross multiply
    397,208x = 548,615.04 × 262,838.72
  4. Step 4: Simplify right side
    397,208x = 144,197,274,886.35
  5. Step 5: Solve for x
    x = 144,197,274,886.35/397,208
  6. Step 6: Final answer
    x = 363,027.12

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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.