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Finding the Fourth Proportional to 201,887.40, 302,831.10 and 154,648.20

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Solution

The fourth proportional to 201,887.40, 302,831.10 and 154,648.20 is: 231,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,887.40 : 302,831.10 = 154,648.20 : x
  2. Step 2: Convert to fraction form
    201,887.40/302,831.10 = 154,648.20/x
  3. Step 3: Cross multiply
    201,887.40x = 302,831.10 × 154,648.20
  4. Step 4: Simplify right side
    201,887.40x = 46,832,284,519.02
  5. Step 5: Solve for x
    x = 46,832,284,519.02/201,887.40
  6. Step 6: Final answer
    x = 231,972.30

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1.5x scale

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.