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Finding the Fourth Proportional to 340,387.78, 510,637.08 and 100,525.96

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Solution

The fourth proportional to 340,387.78, 510,637.08 and 100,525.96 is: 150,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,387.78 : 510,637.08 = 100,525.96 : x
  2. Step 2: Convert to fraction form
    340,387.78/510,637.08 = 100,525.96/x
  3. Step 3: Cross multiply
    340,387.78x = 510,637.08 × 100,525.96
  4. Step 4: Simplify right side
    340,387.78x = 51,332,282,678.60
  5. Step 5: Solve for x
    x = 51,332,282,678.60/340,387.78
  6. Step 6: Final answer
    x = 150,805.30

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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.