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Finding the Fourth Proportional to 349,039.66, 523,559.43 and 99,721.66

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Solution

The fourth proportional to 349,039.66, 523,559.43 and 99,721.66 is: 149,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,039.66 : 523,559.43 = 99,721.66 : x
  2. Step 2: Convert to fraction form
    349,039.66/523,559.43 = 99,721.66/x
  3. Step 3: Cross multiply
    349,039.66x = 523,559.43 × 99,721.66
  4. Step 4: Simplify right side
    349,039.66x = 52,210,215,468.25
  5. Step 5: Solve for x
    x = 52,210,215,468.25/349,039.66
  6. Step 6: Final answer
    x = 149,582.47

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Similar ratio
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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.