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Finding the Fourth Proportional to 290,038.08, 400,162.83 and 169,093.79

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Solution

The fourth proportional to 290,038.08, 400,162.83 and 169,093.79 is: 233,297.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,038.08 : 400,162.83 = 169,093.79 : x
  2. Step 2: Convert to fraction form
    290,038.08/400,162.83 = 169,093.79/x
  3. Step 3: Cross multiply
    290,038.08x = 400,162.83 × 169,093.79
  4. Step 4: Simplify right side
    290,038.08x = 67,665,047,541.01
  5. Step 5: Solve for x
    x = 67,665,047,541.01/290,038.08
  6. Step 6: Final answer
    x = 233,297.12

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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.