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Finding the Fourth Proportional to 340,309.76, 510,446 and 103,632.62

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Solution

The fourth proportional to 340,309.76, 510,446 and 103,632.62 is: 155,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,309.76 : 510,446 = 103,632.62 : x
  2. Step 2: Convert to fraction form
    340,309.76/510,446 = 103,632.62/x
  3. Step 3: Cross multiply
    340,309.76x = 510,446 × 103,632.62
  4. Step 4: Simplify right side
    340,309.76x = 52,898,856,348.52
  5. Step 5: Solve for x
    x = 52,898,856,348.52/340,309.76
  6. Step 6: Final answer
    x = 155,443.25

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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.