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Finding the Fourth Proportional to 216,791.89, 299,208.21 and 148,752.70

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Solution

The fourth proportional to 216,791.89, 299,208.21 and 148,752.70 is: 205,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,791.89 : 299,208.21 = 148,752.70 : x
  2. Step 2: Convert to fraction form
    216,791.89/299,208.21 = 148,752.70/x
  3. Step 3: Cross multiply
    216,791.89x = 299,208.21 × 148,752.70
  4. Step 4: Simplify right side
    216,791.89x = 44,508,026,859.86
  5. Step 5: Solve for x
    x = 44,508,026,859.86/216,791.89
  6. Step 6: Final answer
    x = 205,303.01

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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.