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Finding the Fourth Proportional to 478,127.84, 717,322.73 and 141,168.38

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Solution

The fourth proportional to 478,127.84, 717,322.73 and 141,168.38 is: 211,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,127.84 : 717,322.73 = 141,168.38 : x
  2. Step 2: Convert to fraction form
    478,127.84/717,322.73 = 141,168.38/x
  3. Step 3: Cross multiply
    478,127.84x = 717,322.73 × 141,168.38
  4. Step 4: Simplify right side
    478,127.84x = 101,263,283,438.82
  5. Step 5: Solve for x
    x = 101,263,283,438.82/478,127.84
  6. Step 6: Final answer
    x = 211,791.23

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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.