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Finding the Fourth Proportional to 401,558.80, 554,168.52 and 240,382.68

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Solution

The fourth proportional to 401,558.80, 554,168.52 and 240,382.68 is: 331,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,558.80 : 554,168.52 = 240,382.68 : x
  2. Step 2: Convert to fraction form
    401,558.80/554,168.52 = 240,382.68/x
  3. Step 3: Cross multiply
    401,558.80x = 554,168.52 × 240,382.68
  4. Step 4: Simplify right side
    401,558.80x = 133,212,514,009.23
  5. Step 5: Solve for x
    x = 133,212,514,009.23/401,558.80
  6. Step 6: Final answer
    x = 331,738.50

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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.