Home / 213,285.48-318,545.44-193,255

Finding the Fourth Proportional to 213,285.48, 318,545.44 and 193,255

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Solution

The fourth proportional to 213,285.48, 318,545.44 and 193,255 is: 288,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,285.48 : 318,545.44 = 193,255 : x
  2. Step 2: Convert to fraction form
    213,285.48/318,545.44 = 193,255/x
  3. Step 3: Cross multiply
    213,285.48x = 318,545.44 × 193,255
  4. Step 4: Simplify right side
    213,285.48x = 61,560,499,007.20
  5. Step 5: Solve for x
    x = 61,560,499,007.20/213,285.48
  6. Step 6: Final answer
    x = 288,629.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.