Home / 245,831.60-368,488.20-140,423.60

Finding the Fourth Proportional to 245,831.60, 368,488.20 and 140,423.60

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Solution

The fourth proportional to 245,831.60, 368,488.20 and 140,423.60 is: 210,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,831.60 : 368,488.20 = 140,423.60 : x
  2. Step 2: Convert to fraction form
    245,831.60/368,488.20 = 140,423.60/x
  3. Step 3: Cross multiply
    245,831.60x = 368,488.20 × 140,423.60
  4. Step 4: Simplify right side
    245,831.60x = 51,744,439,601.52
  5. Step 5: Solve for x
    x = 51,744,439,601.52/245,831.60
  6. Step 6: Final answer
    x = 210,487.34

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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.