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Finding the Fourth Proportional to 340,303.75, 510,469.70 and 100,417.65

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Solution

The fourth proportional to 340,303.75, 510,469.70 and 100,417.65 is: 150,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,303.75 : 510,469.70 = 100,417.65 : x
  2. Step 2: Convert to fraction form
    340,303.75/510,469.70 = 100,417.65/x
  3. Step 3: Cross multiply
    340,303.75x = 510,469.70 × 100,417.65
  4. Step 4: Simplify right side
    340,303.75x = 51,260,165,253.86
  5. Step 5: Solve for x
    x = 51,260,165,253.86/340,303.75
  6. Step 6: Final answer
    x = 150,630.62

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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.