Home / 340,618.50-510,918.03-103,926.78

Finding the Fourth Proportional to 340,618.50, 510,918.03 and 103,926.78

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Solution

The fourth proportional to 340,618.50, 510,918.03 and 103,926.78 is: 155,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,618.50 : 510,918.03 = 103,926.78 : x
  2. Step 2: Convert to fraction form
    340,618.50/510,918.03 = 103,926.78/x
  3. Step 3: Cross multiply
    340,618.50x = 510,918.03 × 103,926.78
  4. Step 4: Simplify right side
    340,618.50x = 53,098,065,701.84
  5. Step 5: Solve for x
    x = 53,098,065,701.84/340,618.50
  6. Step 6: Final answer
    x = 155,887.20

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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.