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Finding the Fourth Proportional to 340,514.10, 510,406.65 and 115,666.20

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Solution

The fourth proportional to 340,514.10, 510,406.65 and 115,666.20 is: 173,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,514.10 : 510,406.65 = 115,666.20 : x
  2. Step 2: Convert to fraction form
    340,514.10/510,406.65 = 115,666.20/x
  3. Step 3: Cross multiply
    340,514.10x = 510,406.65 × 115,666.20
  4. Step 4: Simplify right side
    340,514.10x = 59,036,797,660.23
  5. Step 5: Solve for x
    x = 59,036,797,660.23/340,514.10
  6. Step 6: Final answer
    x = 173,375.49

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1.5x scale

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.