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Finding the Fourth Proportional to 538,960.20, 808,440.30 and 183,985.80

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Solution

The fourth proportional to 538,960.20, 808,440.30 and 183,985.80 is: 275,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,960.20 : 808,440.30 = 183,985.80 : x
  2. Step 2: Convert to fraction form
    538,960.20/808,440.30 = 183,985.80/x
  3. Step 3: Cross multiply
    538,960.20x = 808,440.30 × 183,985.80
  4. Step 4: Simplify right side
    538,960.20x = 148,741,535,347.74
  5. Step 5: Solve for x
    x = 148,741,535,347.74/538,960.20
  6. Step 6: Final answer
    x = 275,978.70

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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.