Home / 320,240.19-479,695.86-186,715.47

Finding the Fourth Proportional to 320,240.19, 479,695.86 and 186,715.47

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Solution

The fourth proportional to 320,240.19, 479,695.86 and 186,715.47 is: 279,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,240.19 : 479,695.86 = 186,715.47 : x
  2. Step 2: Convert to fraction form
    320,240.19/479,695.86 = 186,715.47/x
  3. Step 3: Cross multiply
    320,240.19x = 479,695.86 × 186,715.47
  4. Step 4: Simplify right side
    320,240.19x = 89,566,637,956.95
  5. Step 5: Solve for x
    x = 89,566,637,956.95/320,240.19
  6. Step 6: Final answer
    x = 279,685.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.