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Finding the Fourth Proportional to 340,425, 510,637.50 and 91,100.52

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Solution

The fourth proportional to 340,425, 510,637.50 and 91,100.52 is: 136,650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,425 : 510,637.50 = 91,100.52 : x
  2. Step 2: Convert to fraction form
    340,425/510,637.50 = 91,100.52/x
  3. Step 3: Cross multiply
    340,425x = 510,637.50 × 91,100.52
  4. Step 4: Simplify right side
    340,425x = 46,519,341,781.50
  5. Step 5: Solve for x
    x = 46,519,341,781.50/340,425
  6. Step 6: Final answer
    x = 136,650.78

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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.