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Finding the Fourth Proportional to 199,655.40, 299,483.10 and 185,221.20

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Solution

The fourth proportional to 199,655.40, 299,483.10 and 185,221.20 is: 277,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,655.40 : 299,483.10 = 185,221.20 : x
  2. Step 2: Convert to fraction form
    199,655.40/299,483.10 = 185,221.20/x
  3. Step 3: Cross multiply
    199,655.40x = 299,483.10 × 185,221.20
  4. Step 4: Simplify right side
    199,655.40x = 55,470,619,161.72
  5. Step 5: Solve for x
    x = 55,470,619,161.72/199,655.40
  6. Step 6: Final answer
    x = 277,831.80

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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.