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Finding the Fourth Proportional to 272,873.54, 409,365.67 and 85,841.54

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Solution

The fourth proportional to 272,873.54, 409,365.67 and 85,841.54 is: 128,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,873.54 : 409,365.67 = 85,841.54 : x
  2. Step 2: Convert to fraction form
    272,873.54/409,365.67 = 85,841.54/x
  3. Step 3: Cross multiply
    272,873.54x = 409,365.67 × 85,841.54
  4. Step 4: Simplify right side
    272,873.54x = 35,140,579,535.93
  5. Step 5: Solve for x
    x = 35,140,579,535.93/272,873.54
  6. Step 6: Final answer
    x = 128,779.73

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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.