Home / 284,048.07-391,986.03-156,723.66

Finding the Fourth Proportional to 284,048.07, 391,986.03 and 156,723.66

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Solution

The fourth proportional to 284,048.07, 391,986.03 and 156,723.66 is: 216,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,048.07 : 391,986.03 = 156,723.66 : x
  2. Step 2: Convert to fraction form
    284,048.07/391,986.03 = 156,723.66/x
  3. Step 3: Cross multiply
    284,048.07x = 391,986.03 × 156,723.66
  4. Step 4: Simplify right side
    284,048.07x = 61,433,485,878.18
  5. Step 5: Solve for x
    x = 61,433,485,878.18/284,048.07
  6. Step 6: Final answer
    x = 216,278.49

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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.