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Finding the Fourth Proportional to 340,355.88, 510,609.96 and 103,717.08

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Solution

The fourth proportional to 340,355.88, 510,609.96 and 103,717.08 is: 155,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,355.88 : 510,609.96 = 103,717.08 : x
  2. Step 2: Convert to fraction form
    340,355.88/510,609.96 = 103,717.08/x
  3. Step 3: Cross multiply
    340,355.88x = 510,609.96 × 103,717.08
  4. Step 4: Simplify right side
    340,355.88x = 52,958,974,070.12
  5. Step 5: Solve for x
    x = 52,958,974,070.12/340,355.88
  6. Step 6: Final answer
    x = 155,598.82

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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.