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Finding the Fourth Proportional to 340,369.05, 510,498.90 and 103,656.68

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Solution

The fourth proportional to 340,369.05, 510,498.90 and 103,656.68 is: 155,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,369.05 : 510,498.90 = 103,656.68 : x
  2. Step 2: Convert to fraction form
    340,369.05/510,498.90 = 103,656.68/x
  3. Step 3: Cross multiply
    340,369.05x = 510,498.90 × 103,656.68
  4. Step 4: Simplify right side
    340,369.05x = 52,916,621,117.65
  5. Step 5: Solve for x
    x = 52,916,621,117.65/340,369.05
  6. Step 6: Final answer
    x = 155,468.37

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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.