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Finding the Fourth Proportional to 427,089, 589,331.66 and 236,076.42

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Solution

The fourth proportional to 427,089, 589,331.66 and 236,076.42 is: 325,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,089 : 589,331.66 = 236,076.42 : x
  2. Step 2: Convert to fraction form
    427,089/589,331.66 = 236,076.42/x
  3. Step 3: Cross multiply
    427,089x = 589,331.66 × 236,076.42
  4. Step 4: Simplify right side
    427,089x = 139,127,307,305.08
  5. Step 5: Solve for x
    x = 139,127,307,305.08/427,089
  6. Step 6: Final answer
    x = 325,757.18

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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.