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Finding the Fourth Proportional to 284,484.90, 392,600.40 and 163,626

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Solution

The fourth proportional to 284,484.90, 392,600.40 and 163,626 is: 225,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,484.90 : 392,600.40 = 163,626 : x
  2. Step 2: Convert to fraction form
    284,484.90/392,600.40 = 163,626/x
  3. Step 3: Cross multiply
    284,484.90x = 392,600.40 × 163,626
  4. Step 4: Simplify right side
    284,484.90x = 64,239,633,050.40
  5. Step 5: Solve for x
    x = 64,239,633,050.40/284,484.90
  6. Step 6: Final answer
    x = 225,810.34

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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.