Home / 280,831.80-421,247.70-174,543.60

Finding the Fourth Proportional to 280,831.80, 421,247.70 and 174,543.60

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Solution

The fourth proportional to 280,831.80, 421,247.70 and 174,543.60 is: 261,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,831.80 : 421,247.70 = 174,543.60 : x
  2. Step 2: Convert to fraction form
    280,831.80/421,247.70 = 174,543.60/x
  3. Step 3: Cross multiply
    280,831.80x = 421,247.70 × 174,543.60
  4. Step 4: Simplify right side
    280,831.80x = 73,526,090,049.72
  5. Step 5: Solve for x
    x = 73,526,090,049.72/280,831.80
  6. Step 6: Final answer
    x = 261,815.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.