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Finding the Fourth Proportional to 386,274.04, 579,538.50 and 149,617.96

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Solution

The fourth proportional to 386,274.04, 579,538.50 and 149,617.96 is: 224,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,274.04 : 579,538.50 = 149,617.96 : x
  2. Step 2: Convert to fraction form
    386,274.04/579,538.50 = 149,617.96/x
  3. Step 3: Cross multiply
    386,274.04x = 579,538.50 × 149,617.96
  4. Step 4: Simplify right side
    386,274.04x = 86,709,368,111.46
  5. Step 5: Solve for x
    x = 86,709,368,111.46/386,274.04
  6. Step 6: Final answer
    x = 224,476.30

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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.