Home / 230,545.07-318,151.56-128,570.64

Finding the Fourth Proportional to 230,545.07, 318,151.56 and 128,570.64

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Solution

The fourth proportional to 230,545.07, 318,151.56 and 128,570.64 is: 177,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,545.07 : 318,151.56 = 128,570.64 : x
  2. Step 2: Convert to fraction form
    230,545.07/318,151.56 = 128,570.64/x
  3. Step 3: Cross multiply
    230,545.07x = 318,151.56 × 128,570.64
  4. Step 4: Simplify right side
    230,545.07x = 40,904,948,975.27
  5. Step 5: Solve for x
    x = 40,904,948,975.27/230,545.07
  6. Step 6: Final answer
    x = 177,427.13

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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.