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Finding the Fourth Proportional to 340,560.40, 510,864.90 and 103,902.70

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Solution

The fourth proportional to 340,560.40, 510,864.90 and 103,902.70 is: 155,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,560.40 : 510,864.90 = 103,902.70 : x
  2. Step 2: Convert to fraction form
    340,560.40/510,864.90 = 103,902.70/x
  3. Step 3: Cross multiply
    340,560.40x = 510,864.90 × 103,902.70
  4. Step 4: Simplify right side
    340,560.40x = 53,080,242,445.23
  5. Step 5: Solve for x
    x = 53,080,242,445.23/340,560.40
  6. Step 6: Final answer
    x = 155,861.46

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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.