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Finding the Fourth Proportional to 284,485.62, 392,601.47 and 163,626.78

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Solution

The fourth proportional to 284,485.62, 392,601.47 and 163,626.78 is: 225,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,485.62 : 392,601.47 = 163,626.78 : x
  2. Step 2: Convert to fraction form
    284,485.62/392,601.47 = 163,626.78/x
  3. Step 3: Cross multiply
    284,485.62x = 392,601.47 × 163,626.78
  4. Step 4: Simplify right side
    284,485.62x = 64,240,113,541.23
  5. Step 5: Solve for x
    x = 64,240,113,541.23/284,485.62
  6. Step 6: Final answer
    x = 225,811.46

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1.5x scale

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.