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Finding the Fourth Proportional to 340,129.10, 510,247.65 and 115,510.70

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Solution

The fourth proportional to 340,129.10, 510,247.65 and 115,510.70 is: 173,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,129.10 : 510,247.65 = 115,510.70 : x
  2. Step 2: Convert to fraction form
    340,129.10/510,247.65 = 115,510.70/x
  3. Step 3: Cross multiply
    340,129.10x = 510,247.65 × 115,510.70
  4. Step 4: Simplify right side
    340,129.10x = 58,939,063,224.86
  5. Step 5: Solve for x
    x = 58,939,063,224.86/340,129.10
  6. Step 6: Final answer
    x = 173,284.39

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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.