Home / 401,035.60-553,427.40-219,746.80

Finding the Fourth Proportional to 401,035.60, 553,427.40 and 219,746.80

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Solution

The fourth proportional to 401,035.60, 553,427.40 and 219,746.80 is: 303,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,035.60 : 553,427.40 = 219,746.80 : x
  2. Step 2: Convert to fraction form
    401,035.60/553,427.40 = 219,746.80/x
  3. Step 3: Cross multiply
    401,035.60x = 553,427.40 × 219,746.80
  4. Step 4: Simplify right side
    401,035.60x = 121,613,900,182.32
  5. Step 5: Solve for x
    x = 121,613,900,182.32/401,035.60
  6. Step 6: Final answer
    x = 303,249.64

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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.