Home / 315,923.04-435,974.67-188,595.90

Finding the Fourth Proportional to 315,923.04, 435,974.67 and 188,595.90

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Solution

The fourth proportional to 315,923.04, 435,974.67 and 188,595.90 is: 260,262.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,923.04 : 435,974.67 = 188,595.90 : x
  2. Step 2: Convert to fraction form
    315,923.04/435,974.67 = 188,595.90/x
  3. Step 3: Cross multiply
    315,923.04x = 435,974.67 × 188,595.90
  4. Step 4: Simplify right side
    315,923.04x = 82,223,035,265.85
  5. Step 5: Solve for x
    x = 82,223,035,265.85/315,923.04
  6. Step 6: Final answer
    x = 260,262.86

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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.