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Finding the Fourth Proportional to 538,748.55, 808,126.86 and 239,148.58

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Solution

The fourth proportional to 538,748.55, 808,126.86 and 239,148.58 is: 358,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,748.55 : 808,126.86 = 239,148.58 : x
  2. Step 2: Convert to fraction form
    538,748.55/808,126.86 = 239,148.58/x
  3. Step 3: Cross multiply
    538,748.55x = 808,126.86 × 239,148.58
  4. Step 4: Simplify right side
    538,748.55x = 193,262,391,028.86
  5. Step 5: Solve for x
    x = 193,262,391,028.86/538,748.55
  6. Step 6: Final answer
    x = 358,724.66

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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.