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Finding the Fourth Proportional to 371,010.96, 556,407 and 157,778.46

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Solution

The fourth proportional to 371,010.96, 556,407 and 157,778.46 is: 236,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,010.96 : 556,407 = 157,778.46 : x
  2. Step 2: Convert to fraction form
    371,010.96/556,407 = 157,778.46/x
  3. Step 3: Cross multiply
    371,010.96x = 556,407 × 157,778.46
  4. Step 4: Simplify right side
    371,010.96x = 87,789,039,593.22
  5. Step 5: Solve for x
    x = 87,789,039,593.22/371,010.96
  6. Step 6: Final answer
    x = 236,621.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.