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Finding the Fourth Proportional to 340,060.71, 510,119.64 and 103,405.44

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Solution

The fourth proportional to 340,060.71, 510,119.64 and 103,405.44 is: 155,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,060.71 : 510,119.64 = 103,405.44 : x
  2. Step 2: Convert to fraction form
    340,060.71/510,119.64 = 103,405.44/x
  3. Step 3: Cross multiply
    340,060.71x = 510,119.64 × 103,405.44
  4. Step 4: Simplify right side
    340,060.71x = 52,749,145,826.84
  5. Step 5: Solve for x
    x = 52,749,145,826.84/340,060.71
  6. Step 6: Final answer
    x = 155,116.85

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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.