Home / 248,320.69-342,658.86-139,400.12

Finding the Fourth Proportional to 248,320.69, 342,658.86 and 139,400.12

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Solution

The fourth proportional to 248,320.69, 342,658.86 and 139,400.12 is: 192,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,320.69 : 342,658.86 = 139,400.12 : x
  2. Step 2: Convert to fraction form
    248,320.69/342,658.86 = 139,400.12/x
  3. Step 3: Cross multiply
    248,320.69x = 342,658.86 × 139,400.12
  4. Step 4: Simplify right side
    248,320.69x = 47,766,686,536.96
  5. Step 5: Solve for x
    x = 47,766,686,536.96/248,320.69
  6. Step 6: Final answer
    x = 192,358.87

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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.