Home / 401,272.54-553,741.26-217,507.16

Finding the Fourth Proportional to 401,272.54, 553,741.26 and 217,507.16

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Solution

The fourth proportional to 401,272.54, 553,741.26 and 217,507.16 is: 300,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,272.54 : 553,741.26 = 217,507.16 : x
  2. Step 2: Convert to fraction form
    401,272.54/553,741.26 = 217,507.16/x
  3. Step 3: Cross multiply
    401,272.54x = 553,741.26 × 217,507.16
  4. Step 4: Simplify right side
    401,272.54x = 120,442,689,406.12
  5. Step 5: Solve for x
    x = 120,442,689,406.12/401,272.54
  6. Step 6: Final answer
    x = 300,151.84

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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.