Home / 401,028.32-553,382.28-231,229.64

Finding the Fourth Proportional to 401,028.32, 553,382.28 and 231,229.64

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Solution

The fourth proportional to 401,028.32, 553,382.28 and 231,229.64 is: 319,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.32 : 553,382.28 = 231,229.64 : x
  2. Step 2: Convert to fraction form
    401,028.32/553,382.28 = 231,229.64/x
  3. Step 3: Cross multiply
    401,028.32x = 553,382.28 × 231,229.64
  4. Step 4: Simplify right side
    401,028.32x = 127,958,385,386.78
  5. Step 5: Solve for x
    x = 127,958,385,386.78/401,028.32
  6. Step 6: Final answer
    x = 319,075.68

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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.