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Finding the Fourth Proportional to 308,162.86, 425,256.59 and 172,197.93

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Solution

The fourth proportional to 308,162.86, 425,256.59 and 172,197.93 is: 237,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,162.86 : 425,256.59 = 172,197.93 : x
  2. Step 2: Convert to fraction form
    308,162.86/425,256.59 = 172,197.93/x
  3. Step 3: Cross multiply
    308,162.86x = 425,256.59 × 172,197.93
  4. Step 4: Simplify right side
    308,162.86x = 73,228,301,960.08
  5. Step 5: Solve for x
    x = 73,228,301,960.08/308,162.86
  6. Step 6: Final answer
    x = 237,628.58

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1.5x scale

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.