Home / 284,133.15-392,231.61-187,394.39

Finding the Fourth Proportional to 284,133.15, 392,231.61 and 187,394.39

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Solution

The fourth proportional to 284,133.15, 392,231.61 and 187,394.39 is: 258,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,133.15 : 392,231.61 = 187,394.39 : x
  2. Step 2: Convert to fraction form
    284,133.15/392,231.61 = 187,394.39/x
  3. Step 3: Cross multiply
    284,133.15x = 392,231.61 × 187,394.39
  4. Step 4: Simplify right side
    284,133.15x = 73,502,003,294.67
  5. Step 5: Solve for x
    x = 73,502,003,294.67/284,133.15
  6. Step 6: Final answer
    x = 258,688.59

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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.