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Finding the Fourth Proportional to 284,389.77, 426,664.41 and 124,479.66

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Solution

The fourth proportional to 284,389.77, 426,664.41 and 124,479.66 is: 186,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,389.77 : 426,664.41 = 124,479.66 : x
  2. Step 2: Convert to fraction form
    284,389.77/426,664.41 = 124,479.66/x
  3. Step 3: Cross multiply
    284,389.77x = 426,664.41 × 124,479.66
  4. Step 4: Simplify right side
    284,389.77x = 53,111,040,690.90
  5. Step 5: Solve for x
    x = 53,111,040,690.90/284,389.77
  6. Step 6: Final answer
    x = 186,754.40

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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.