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Finding the Fourth Proportional to 340,308.76, 510,444.50 and 103,631.62

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Solution

The fourth proportional to 340,308.76, 510,444.50 and 103,631.62 is: 155,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,308.76 : 510,444.50 = 103,631.62 : x
  2. Step 2: Convert to fraction form
    340,308.76/510,444.50 = 103,631.62/x
  3. Step 3: Cross multiply
    340,308.76x = 510,444.50 × 103,631.62
  4. Step 4: Simplify right side
    340,308.76x = 52,898,190,455.09
  5. Step 5: Solve for x
    x = 52,898,190,455.09/340,308.76
  6. Step 6: Final answer
    x = 155,441.75

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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.