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Finding the Fourth Proportional to 335,408.66, 502,807.52 and 215,498.20

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Solution

The fourth proportional to 335,408.66, 502,807.52 and 215,498.20 is: 323,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,408.66 : 502,807.52 = 215,498.20 : x
  2. Step 2: Convert to fraction form
    335,408.66/502,807.52 = 215,498.20/x
  3. Step 3: Cross multiply
    335,408.66x = 502,807.52 × 215,498.20
  4. Step 4: Simplify right side
    335,408.66x = 108,354,115,506.46
  5. Step 5: Solve for x
    x = 108,354,115,506.46/335,408.66
  6. Step 6: Final answer
    x = 323,051.04

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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.