Home / 430,831.20-646,516.24-164,614.40

Finding the Fourth Proportional to 430,831.20, 646,516.24 and 164,614.40

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Solution

The fourth proportional to 430,831.20, 646,516.24 and 164,614.40 is: 247,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,831.20 : 646,516.24 = 164,614.40 : x
  2. Step 2: Convert to fraction form
    430,831.20/646,516.24 = 164,614.40/x
  3. Step 3: Cross multiply
    430,831.20x = 646,516.24 × 164,614.40
  4. Step 4: Simplify right side
    430,831.20x = 106,425,882,937.86
  5. Step 5: Solve for x
    x = 106,425,882,937.86/430,831.20
  6. Step 6: Final answer
    x = 247,024.55

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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.