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Finding the Fourth Proportional to 291,487.49, 402,253.57 and 169,003.64

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Solution

The fourth proportional to 291,487.49, 402,253.57 and 169,003.64 is: 233,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,487.49 : 402,253.57 = 169,003.64 : x
  2. Step 2: Convert to fraction form
    291,487.49/402,253.57 = 169,003.64/x
  3. Step 3: Cross multiply
    291,487.49x = 402,253.57 × 169,003.64
  4. Step 4: Simplify right side
    291,487.49x = 67,982,317,532.99
  5. Step 5: Solve for x
    x = 67,982,317,532.99/291,487.49
  6. Step 6: Final answer
    x = 233,225.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.