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Finding the Fourth Proportional to 538,759.50, 808,143.30 and 239,159.54

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Solution

The fourth proportional to 538,759.50, 808,143.30 and 239,159.54 is: 358,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,759.50 : 808,143.30 = 239,159.54 : x
  2. Step 2: Convert to fraction form
    538,759.50/808,143.30 = 239,159.54/x
  3. Step 3: Cross multiply
    538,759.50x = 808,143.30 × 239,159.54
  4. Step 4: Simplify right side
    538,759.50x = 193,275,175,841.37
  5. Step 5: Solve for x
    x = 193,275,175,841.37/538,759.50
  6. Step 6: Final answer
    x = 358,741.10

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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.