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Finding the Fourth Proportional to 340,515.23, 510,802.20 and 87,793.47

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Solution

The fourth proportional to 340,515.23, 510,802.20 and 87,793.47 is: 131,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,515.23 : 510,802.20 = 87,793.47 : x
  2. Step 2: Convert to fraction form
    340,515.23/510,802.20 = 87,793.47/x
  3. Step 3: Cross multiply
    340,515.23x = 510,802.20 × 87,793.47
  4. Step 4: Simplify right side
    340,515.23x = 44,845,097,621.63
  5. Step 5: Solve for x
    x = 44,845,097,621.63/340,515.23
  6. Step 6: Final answer
    x = 131,697.78

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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.