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Finding the Fourth Proportional to 339,808.38, 509,700.99 and 87,091.35

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Solution

The fourth proportional to 339,808.38, 509,700.99 and 87,091.35 is: 130,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,808.38 : 509,700.99 = 87,091.35 : x
  2. Step 2: Convert to fraction form
    339,808.38/509,700.99 = 87,091.35/x
  3. Step 3: Cross multiply
    339,808.38x = 509,700.99 × 87,091.35
  4. Step 4: Simplify right side
    339,808.38x = 44,390,547,315.44
  5. Step 5: Solve for x
    x = 44,390,547,315.44/339,808.38
  6. Step 6: Final answer
    x = 130,634.06

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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.