Home / 401,690.08-554,313.60-220,397.92

Finding the Fourth Proportional to 401,690.08, 554,313.60 and 220,397.92

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Solution

The fourth proportional to 401,690.08, 554,313.60 and 220,397.92 is: 304,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,690.08 : 554,313.60 = 220,397.92 : x
  2. Step 2: Convert to fraction form
    401,690.08/554,313.60 = 220,397.92/x
  3. Step 3: Cross multiply
    401,690.08x = 554,313.60 × 220,397.92
  4. Step 4: Simplify right side
    401,690.08x = 122,169,564,467.71
  5. Step 5: Solve for x
    x = 122,169,564,467.71/401,690.08
  6. Step 6: Final answer
    x = 304,138.86

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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.