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Finding the Fourth Proportional to 340,476.50, 510,812.19 and 115,886.42

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Solution

The fourth proportional to 340,476.50, 510,812.19 and 115,886.42 is: 173,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,476.50 : 510,812.19 = 115,886.42 : x
  2. Step 2: Convert to fraction form
    340,476.50/510,812.19 = 115,886.42/x
  3. Step 3: Cross multiply
    340,476.50x = 510,812.19 × 115,886.42
  4. Step 4: Simplify right side
    340,476.50x = 59,196,195,991.46
  5. Step 5: Solve for x
    x = 59,196,195,991.46/340,476.50
  6. Step 6: Final answer
    x = 173,862.80

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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.