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Finding the Fourth Proportional to 508,159.47, 701,255.29 and 278,712.09

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Solution

The fourth proportional to 508,159.47, 701,255.29 and 278,712.09 is: 384,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,159.47 : 701,255.29 = 278,712.09 : x
  2. Step 2: Convert to fraction form
    508,159.47/701,255.29 = 278,712.09/x
  3. Step 3: Cross multiply
    508,159.47x = 701,255.29 × 278,712.09
  4. Step 4: Simplify right side
    508,159.47x = 195,448,322,599.62
  5. Step 5: Solve for x
    x = 195,448,322,599.62/508,159.47
  6. Step 6: Final answer
    x = 384,620.05

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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.