Home / 401,028.98-553,367.50-239,825.21

Finding the Fourth Proportional to 401,028.98, 553,367.50 and 239,825.21

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Solution

The fourth proportional to 401,028.98, 553,367.50 and 239,825.21 is: 330,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.98 : 553,367.50 = 239,825.21 : x
  2. Step 2: Convert to fraction form
    401,028.98/553,367.50 = 239,825.21/x
  3. Step 3: Cross multiply
    401,028.98x = 553,367.50 × 239,825.21
  4. Step 4: Simplify right side
    401,028.98x = 132,711,473,528.27
  5. Step 5: Solve for x
    x = 132,711,473,528.27/401,028.98
  6. Step 6: Final answer
    x = 330,927.39

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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.