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Finding the Fourth Proportional to 273,038.54, 409,468.65 and 90,620.33

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Solution

The fourth proportional to 273,038.54, 409,468.65 and 90,620.33 is: 135,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,038.54 : 409,468.65 = 90,620.33 : x
  2. Step 2: Convert to fraction form
    273,038.54/409,468.65 = 90,620.33/x
  3. Step 3: Cross multiply
    273,038.54x = 409,468.65 × 90,620.33
  4. Step 4: Simplify right side
    273,038.54x = 37,106,182,140.31
  5. Step 5: Solve for x
    x = 37,106,182,140.31/273,038.54
  6. Step 6: Final answer
    x = 135,900.90

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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.