Home / 290,656.05-401,056.85-161,590.92

Finding the Fourth Proportional to 290,656.05, 401,056.85 and 161,590.92

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Solution

The fourth proportional to 290,656.05, 401,056.85 and 161,590.92 is: 222,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,656.05 : 401,056.85 = 161,590.92 : x
  2. Step 2: Convert to fraction form
    290,656.05/401,056.85 = 161,590.92/x
  3. Step 3: Cross multiply
    290,656.05x = 401,056.85 × 161,590.92
  4. Step 4: Simplify right side
    290,656.05x = 64,807,144,555.85
  5. Step 5: Solve for x
    x = 64,807,144,555.85/290,656.05
  6. Step 6: Final answer
    x = 222,968.50

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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.