Home / 401,317.38-553,835.45-240,141.54

Finding the Fourth Proportional to 401,317.38, 553,835.45 and 240,141.54

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Solution

The fourth proportional to 401,317.38, 553,835.45 and 240,141.54 is: 331,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,317.38 : 553,835.45 = 240,141.54 : x
  2. Step 2: Convert to fraction form
    401,317.38/553,835.45 = 240,141.54/x
  3. Step 3: Cross multiply
    401,317.38x = 553,835.45 × 240,141.54
  4. Step 4: Simplify right side
    401,317.38x = 132,998,896,668.89
  5. Step 5: Solve for x
    x = 132,998,896,668.89/401,317.38
  6. Step 6: Final answer
    x = 331,405.77

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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.