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Finding the Fourth Proportional to 484,685.64, 668,888.01 and 269,839.17

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Solution

The fourth proportional to 484,685.64, 668,888.01 and 269,839.17 is: 372,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,685.64 : 668,888.01 = 269,839.17 : x
  2. Step 2: Convert to fraction form
    484,685.64/668,888.01 = 269,839.17/x
  3. Step 3: Cross multiply
    484,685.64x = 668,888.01 × 269,839.17
  4. Step 4: Simplify right side
    484,685.64x = 180,492,185,441.35
  5. Step 5: Solve for x
    x = 180,492,185,441.35/484,685.64
  6. Step 6: Final answer
    x = 372,390.21

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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.