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Finding the Fourth Proportional to 340,941.76, 510,656.00 and 220,611.80

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Solution

The fourth proportional to 340,941.76, 510,656.00 and 220,611.80 is: 330,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,941.76 : 510,656.00 = 220,611.80 : x
  2. Step 2: Convert to fraction form
    340,941.76/510,656.00 = 220,611.80/x
  3. Step 3: Cross multiply
    340,941.76x = 510,656.00 × 220,611.80
  4. Step 4: Simplify right side
    340,941.76x = 112,656,739,514.38
  5. Step 5: Solve for x
    x = 112,656,739,514.38/340,941.76
  6. Step 6: Final answer
    x = 330,428.11

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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.