Home / 284,725.12-392,886.48-157,383.28

Finding the Fourth Proportional to 284,725.12, 392,886.48 and 157,383.28

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Solution

The fourth proportional to 284,725.12, 392,886.48 and 157,383.28 is: 217,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,725.12 : 392,886.48 = 157,383.28 : x
  2. Step 2: Convert to fraction form
    284,725.12/392,886.48 = 157,383.28/x
  3. Step 3: Cross multiply
    284,725.12x = 392,886.48 × 157,383.28
  4. Step 4: Simplify right side
    284,725.12x = 61,833,762,890.05
  5. Step 5: Solve for x
    x = 61,833,762,890.05/284,725.12
  6. Step 6: Final answer
    x = 217,170.03

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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.