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Finding the Fourth Proportional to 484,637.76, 668,806.47 and 266,871.96

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Solution

The fourth proportional to 484,637.76, 668,806.47 and 266,871.96 is: 368,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,637.76 : 668,806.47 = 266,871.96 : x
  2. Step 2: Convert to fraction form
    484,637.76/668,806.47 = 266,871.96/x
  3. Step 3: Cross multiply
    484,637.76x = 668,806.47 × 266,871.96
  4. Step 4: Simplify right side
    484,637.76x = 178,485,693,509.58
  5. Step 5: Solve for x
    x = 178,485,693,509.58/484,637.76
  6. Step 6: Final answer
    x = 368,286.81

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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.