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Finding the Fourth Proportional to 208,549.77, 312,848.82 and 75,492.69

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Solution

The fourth proportional to 208,549.77, 312,848.82 and 75,492.69 is: 113,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,549.77 : 312,848.82 = 75,492.69 : x
  2. Step 2: Convert to fraction form
    208,549.77/312,848.82 = 75,492.69/x
  3. Step 3: Cross multiply
    208,549.77x = 312,848.82 × 75,492.69
  4. Step 4: Simplify right side
    208,549.77x = 23,617,798,985.13
  5. Step 5: Solve for x
    x = 23,617,798,985.13/208,549.77
  6. Step 6: Final answer
    x = 113,247.78

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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.