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Finding the Fourth Proportional to 307,373.72, 424,177.59 and 171,416.27

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Solution

The fourth proportional to 307,373.72, 424,177.59 and 171,416.27 is: 236,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,373.72 : 424,177.59 = 171,416.27 : x
  2. Step 2: Convert to fraction form
    307,373.72/424,177.59 = 171,416.27/x
  3. Step 3: Cross multiply
    307,373.72x = 424,177.59 × 171,416.27
  4. Step 4: Simplify right side
    307,373.72x = 72,710,940,295.39
  5. Step 5: Solve for x
    x = 72,710,940,295.39/307,373.72
  6. Step 6: Final answer
    x = 236,555.49

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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.