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Finding the Fourth Proportional to 393,384.51, 588,807.86 and 203,583.77

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Solution

The fourth proportional to 393,384.51, 588,807.86 and 203,583.77 is: 304,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,384.51 : 588,807.86 = 203,583.77 : x
  2. Step 2: Convert to fraction form
    393,384.51/588,807.86 = 203,583.77/x
  3. Step 3: Cross multiply
    393,384.51x = 588,807.86 × 203,583.77
  4. Step 4: Simplify right side
    393,384.51x = 119,871,719,982.47
  5. Step 5: Solve for x
    x = 119,871,719,982.47/393,384.51
  6. Step 6: Final answer
    x = 304,718.96

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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.