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Finding the Fourth Proportional to 307,487.42, 424,333.33 and 171,530.17

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Solution

The fourth proportional to 307,487.42, 424,333.33 and 171,530.17 is: 236,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,487.42 : 424,333.33 = 171,530.17 : x
  2. Step 2: Convert to fraction form
    307,487.42/424,333.33 = 171,530.17/x
  3. Step 3: Cross multiply
    307,487.42x = 424,333.33 × 171,530.17
  4. Step 4: Simplify right side
    307,487.42x = 72,785,968,231.57
  5. Step 5: Solve for x
    x = 72,785,968,231.57/307,487.42
  6. Step 6: Final answer
    x = 236,712.02

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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.