Home / 213,505.52-321,681.29-193,266.68

Finding the Fourth Proportional to 213,505.52, 321,681.29 and 193,266.68

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Solution

The fourth proportional to 213,505.52, 321,681.29 and 193,266.68 is: 291,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,505.52 : 321,681.29 = 193,266.68 : x
  2. Step 2: Convert to fraction form
    213,505.52/321,681.29 = 193,266.68/x
  3. Step 3: Cross multiply
    213,505.52x = 321,681.29 × 193,266.68
  4. Step 4: Simplify right side
    213,505.52x = 62,170,272,361.68
  5. Step 5: Solve for x
    x = 62,170,272,361.68/213,505.52
  6. Step 6: Final answer
    x = 291,188.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.