Home / 230,571.14-318,189.96-128,603.07

Finding the Fourth Proportional to 230,571.14, 318,189.96 and 128,603.07

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Solution

The fourth proportional to 230,571.14, 318,189.96 and 128,603.07 is: 177,473.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,571.14 : 318,189.96 = 128,603.07 : x
  2. Step 2: Convert to fraction form
    230,571.14/318,189.96 = 128,603.07/x
  3. Step 3: Cross multiply
    230,571.14x = 318,189.96 × 128,603.07
  4. Step 4: Simplify right side
    230,571.14x = 40,920,205,699.18
  5. Step 5: Solve for x
    x = 40,920,205,699.18/230,571.14
  6. Step 6: Final answer
    x = 177,473.24

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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.