Home / 401,030.32-553,385.04-231,231.64

Finding the Fourth Proportional to 401,030.32, 553,385.04 and 231,231.64

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Solution

The fourth proportional to 401,030.32, 553,385.04 and 231,231.64 is: 319,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,030.32 : 553,385.04 = 231,231.64 : x
  2. Step 2: Convert to fraction form
    401,030.32/553,385.04 = 231,231.64/x
  3. Step 3: Cross multiply
    401,030.32x = 553,385.04 × 231,231.64
  4. Step 4: Simplify right side
    401,030.32x = 127,960,130,350.67
  5. Step 5: Solve for x
    x = 127,960,130,350.67/401,030.32
  6. Step 6: Final answer
    x = 319,078.44

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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.