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Finding the Fourth Proportional to 284,366.21, 392,435.06 and 168,179.28

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Solution

The fourth proportional to 284,366.21, 392,435.06 and 168,179.28 is: 232,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,366.21 : 392,435.06 = 168,179.28 : x
  2. Step 2: Convert to fraction form
    284,366.21/392,435.06 = 168,179.28/x
  3. Step 3: Cross multiply
    284,366.21x = 392,435.06 × 168,179.28
  4. Step 4: Simplify right side
    284,366.21x = 65,999,444,996.66
  5. Step 5: Solve for x
    x = 65,999,444,996.66/284,366.21
  6. Step 6: Final answer
    x = 232,093.13

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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.