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Finding the Fourth Proportional to 284,513.63, 392,628.51 and 163,651.80

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Solution

The fourth proportional to 284,513.63, 392,628.51 and 163,651.80 is: 225,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,513.63 : 392,628.51 = 163,651.80 : x
  2. Step 2: Convert to fraction form
    284,513.63/392,628.51 = 163,651.80/x
  3. Step 3: Cross multiply
    284,513.63x = 392,628.51 × 163,651.80
  4. Step 4: Simplify right side
    284,513.63x = 64,254,362,392.82
  5. Step 5: Solve for x
    x = 64,254,362,392.82/284,513.63
  6. Step 6: Final answer
    x = 225,839.32

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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.