Home / 379,720.91-523,767.97-243,539.16

Finding the Fourth Proportional to 379,720.91, 523,767.97 and 243,539.16

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Solution

The fourth proportional to 379,720.91, 523,767.97 and 243,539.16 is: 335,925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,720.91 : 523,767.97 = 243,539.16 : x
  2. Step 2: Convert to fraction form
    379,720.91/523,767.97 = 243,539.16/x
  3. Step 3: Cross multiply
    379,720.91x = 523,767.97 × 243,539.16
  4. Step 4: Simplify right side
    379,720.91x = 127,558,008,221.02
  5. Step 5: Solve for x
    x = 127,558,008,221.02/379,720.91
  6. Step 6: Final answer
    x = 335,925.69

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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.