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Finding the Fourth Proportional to 315,851.15, 435,873.87 and 179,885.09

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Solution

The fourth proportional to 315,851.15, 435,873.87 and 179,885.09 is: 248,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,851.15 : 435,873.87 = 179,885.09 : x
  2. Step 2: Convert to fraction form
    315,851.15/435,873.87 = 179,885.09/x
  3. Step 3: Cross multiply
    315,851.15x = 435,873.87 × 179,885.09
  4. Step 4: Simplify right side
    315,851.15x = 78,407,208,154.23
  5. Step 5: Solve for x
    x = 78,407,208,154.23/315,851.15
  6. Step 6: Final answer
    x = 248,241.01

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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.