Home / 401,243.20-553,774.56-231,444.16

Finding the Fourth Proportional to 401,243.20, 553,774.56 and 231,444.16

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Solution

The fourth proportional to 401,243.20, 553,774.56 and 231,444.16 is: 319,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,243.20 : 553,774.56 = 231,444.16 : x
  2. Step 2: Convert to fraction form
    401,243.20/553,774.56 = 231,444.16/x
  3. Step 3: Cross multiply
    401,243.20x = 553,774.56 × 231,444.16
  4. Step 4: Simplify right side
    401,243.20x = 128,167,887,868.57
  5. Step 5: Solve for x
    x = 128,167,887,868.57/401,243.20
  6. Step 6: Final answer
    x = 319,426.94

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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.