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Finding the Fourth Proportional to 538,751.17, 808,130.79 and 239,151.20

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Solution

The fourth proportional to 538,751.17, 808,130.79 and 239,151.20 is: 358,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,751.17 : 808,130.79 = 239,151.20 : x
  2. Step 2: Convert to fraction form
    538,751.17/808,130.79 = 239,151.20/x
  3. Step 3: Cross multiply
    538,751.17x = 808,130.79 × 239,151.20
  4. Step 4: Simplify right side
    538,751.17x = 193,265,448,185.45
  5. Step 5: Solve for x
    x = 193,265,448,185.45/538,751.17
  6. Step 6: Final answer
    x = 358,728.59

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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.