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Finding the Fourth Proportional to 499,376.21, 749,138.90 and 183,809.12

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Solution

The fourth proportional to 499,376.21, 749,138.90 and 183,809.12 is: 275,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,376.21 : 749,138.90 = 183,809.12 : x
  2. Step 2: Convert to fraction form
    499,376.21/749,138.90 = 183,809.12/x
  3. Step 3: Cross multiply
    499,376.21x = 749,138.90 × 183,809.12
  4. Step 4: Simplify right side
    499,376.21x = 137,698,557,302.03
  5. Step 5: Solve for x
    x = 137,698,557,302.03/499,376.21
  6. Step 6: Final answer
    x = 275,741.13

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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.