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Finding the Fourth Proportional to 538,589.23, 808,002.30 and 159,539.60

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Solution

The fourth proportional to 538,589.23, 808,002.30 and 159,539.60 is: 239,344.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,589.23 : 808,002.30 = 159,539.60 : x
  2. Step 2: Convert to fraction form
    538,589.23/808,002.30 = 159,539.60/x
  3. Step 3: Cross multiply
    538,589.23x = 808,002.30 × 159,539.60
  4. Step 4: Simplify right side
    538,589.23x = 128,908,363,741.08
  5. Step 5: Solve for x
    x = 128,908,363,741.08/538,589.23
  6. Step 6: Final answer
    x = 239,344.49

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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.