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Finding the Fourth Proportional to 280,595.08, 420,892.57 and 103,025.26

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Solution

The fourth proportional to 280,595.08, 420,892.57 and 103,025.26 is: 154,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,595.08 : 420,892.57 = 103,025.26 : x
  2. Step 2: Convert to fraction form
    280,595.08/420,892.57 = 103,025.26/x
  3. Step 3: Cross multiply
    280,595.08x = 420,892.57 × 103,025.26
  4. Step 4: Simplify right side
    280,595.08x = 43,362,566,456.32
  5. Step 5: Solve for x
    x = 43,362,566,456.32/280,595.08
  6. Step 6: Final answer
    x = 154,537.87

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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.