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Finding the Fourth Proportional to 411,967.09, 617,212.52 and 145,557.68

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Solution

The fourth proportional to 411,967.09, 617,212.52 and 145,557.68 is: 218,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,967.09 : 617,212.52 = 145,557.68 : x
  2. Step 2: Convert to fraction form
    411,967.09/617,212.52 = 145,557.68/x
  3. Step 3: Cross multiply
    411,967.09x = 617,212.52 × 145,557.68
  4. Step 4: Simplify right side
    411,967.09x = 89,840,024,008.49
  5. Step 5: Solve for x
    x = 89,840,024,008.49/411,967.09
  6. Step 6: Final answer
    x = 218,075.73

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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.