Home / 311,764.04-430,208.34-175,831.40

Finding the Fourth Proportional to 311,764.04, 430,208.34 and 175,831.40

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Solution

The fourth proportional to 311,764.04, 430,208.34 and 175,831.40 is: 242,632.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,764.04 : 430,208.34 = 175,831.40 : x
  2. Step 2: Convert to fraction form
    311,764.04/430,208.34 = 175,831.40/x
  3. Step 3: Cross multiply
    311,764.04x = 430,208.34 × 175,831.40
  4. Step 4: Simplify right side
    311,764.04x = 75,644,134,713.88
  5. Step 5: Solve for x
    x = 75,644,134,713.88/311,764.04
  6. Step 6: Final answer
    x = 242,632.65

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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.