Home / 290,980.08-401,506.22-163,631.06

Finding the Fourth Proportional to 290,980.08, 401,506.22 and 163,631.06

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Solution

The fourth proportional to 290,980.08, 401,506.22 and 163,631.06 is: 225,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,980.08 : 401,506.22 = 163,631.06 : x
  2. Step 2: Convert to fraction form
    290,980.08/401,506.22 = 163,631.06/x
  3. Step 3: Cross multiply
    290,980.08x = 401,506.22 × 163,631.06
  4. Step 4: Simplify right side
    290,980.08x = 65,698,888,375.19
  5. Step 5: Solve for x
    x = 65,698,888,375.19/290,980.08
  6. Step 6: Final answer
    x = 225,784.83

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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.