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Finding the Fourth Proportional to 362,409.78, 500,111.80 and 201,275.21

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Solution

The fourth proportional to 362,409.78, 500,111.80 and 201,275.21 is: 277,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,409.78 : 500,111.80 = 201,275.21 : x
  2. Step 2: Convert to fraction form
    362,409.78/500,111.80 = 201,275.21/x
  3. Step 3: Cross multiply
    362,409.78x = 500,111.80 × 201,275.21
  4. Step 4: Simplify right side
    362,409.78x = 100,660,109,447.74
  5. Step 5: Solve for x
    x = 100,660,109,447.74/362,409.78
  6. Step 6: Final answer
    x = 277,752.19

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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.