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Finding the Fourth Proportional to 340,381.74, 510,844.77 and 153,407.82

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Solution

The fourth proportional to 340,381.74, 510,844.77 and 153,407.82 is: 230,234.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,381.74 : 510,844.77 = 153,407.82 : x
  2. Step 2: Convert to fraction form
    340,381.74/510,844.77 = 153,407.82/x
  3. Step 3: Cross multiply
    340,381.74x = 510,844.77 × 153,407.82
  4. Step 4: Simplify right side
    340,381.74x = 78,367,582,524.10
  5. Step 5: Solve for x
    x = 78,367,582,524.10/340,381.74
  6. Step 6: Final answer
    x = 230,234.39

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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.