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Finding the Fourth Proportional to 371,383.96, 512,931.96 and 250,316.56

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Solution

The fourth proportional to 371,383.96, 512,931.96 and 250,316.56 is: 345,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,383.96 : 512,931.96 = 250,316.56 : x
  2. Step 2: Convert to fraction form
    371,383.96/512,931.96 = 250,316.56/x
  3. Step 3: Cross multiply
    371,383.96x = 512,931.96 × 250,316.56
  4. Step 4: Simplify right side
    371,383.96x = 128,395,363,741.26
  5. Step 5: Solve for x
    x = 128,395,363,741.26/371,383.96
  6. Step 6: Final answer
    x = 345,721.35

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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.