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Finding the Fourth Proportional to 545,225.13, 817,967.09 and 171,248.13

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Solution

The fourth proportional to 545,225.13, 817,967.09 and 171,248.13 is: 256,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,225.13 : 817,967.09 = 171,248.13 : x
  2. Step 2: Convert to fraction form
    545,225.13/817,967.09 = 171,248.13/x
  3. Step 3: Cross multiply
    545,225.13x = 817,967.09 × 171,248.13
  4. Step 4: Simplify right side
    545,225.13x = 140,075,334,992.16
  5. Step 5: Solve for x
    x = 140,075,334,992.16/545,225.13
  6. Step 6: Final answer
    x = 256,912.84

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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.