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Finding the Fourth Proportional to 524,955.09, 787,557.78 and 169,969.21

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Solution

The fourth proportional to 524,955.09, 787,557.78 and 169,969.21 is: 254,994.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,955.09 : 787,557.78 = 169,969.21 : x
  2. Step 2: Convert to fraction form
    524,955.09/787,557.78 = 169,969.21/x
  3. Step 3: Cross multiply
    524,955.09x = 787,557.78 × 169,969.21
  4. Step 4: Simplify right side
    524,955.09x = 133,860,573,695.95
  5. Step 5: Solve for x
    x = 133,860,573,695.95/524,955.09
  6. Step 6: Final answer
    x = 254,994.33

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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.