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Finding the Fourth Proportional to 402,851.26, 555,923.62 and 221,563.23

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Solution

The fourth proportional to 402,851.26, 555,923.62 and 221,563.23 is: 305,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,851.26 : 555,923.62 = 221,563.23 : x
  2. Step 2: Convert to fraction form
    402,851.26/555,923.62 = 221,563.23/x
  3. Step 3: Cross multiply
    402,851.26x = 555,923.62 × 221,563.23
  4. Step 4: Simplify right side
    402,851.26x = 123,172,232,326.59
  5. Step 5: Solve for x
    x = 123,172,232,326.59/402,851.26
  6. Step 6: Final answer
    x = 305,751.14

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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.