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Finding the Fourth Proportional to 290,178.96, 400,245.48 and 236,464.08

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Solution

The fourth proportional to 290,178.96, 400,245.48 and 236,464.08 is: 326,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,178.96 : 400,245.48 = 236,464.08 : x
  2. Step 2: Convert to fraction form
    290,178.96/400,245.48 = 236,464.08/x
  3. Step 3: Cross multiply
    290,178.96x = 400,245.48 × 236,464.08
  4. Step 4: Simplify right side
    290,178.96x = 94,643,679,202.36
  5. Step 5: Solve for x
    x = 94,643,679,202.36/290,178.96
  6. Step 6: Final answer
    x = 326,156.24

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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.