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Finding the Fourth Proportional to 340,301.82, 510,526.62 and 103,638.27

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Solution

The fourth proportional to 340,301.82, 510,526.62 and 103,638.27 is: 155,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,301.82 : 510,526.62 = 103,638.27 : x
  2. Step 2: Convert to fraction form
    340,301.82/510,526.62 = 103,638.27/x
  3. Step 3: Cross multiply
    340,301.82x = 510,526.62 × 103,638.27
  4. Step 4: Simplify right side
    340,301.82x = 52,910,095,685.75
  5. Step 5: Solve for x
    x = 52,910,095,685.75/340,301.82
  6. Step 6: Final answer
    x = 155,479.91

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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.