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Finding the Fourth Proportional to 304,831.20, 420,662.50 and 168,864.73

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Solution

The fourth proportional to 304,831.20, 420,662.50 and 168,864.73 is: 233,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,831.20 : 420,662.50 = 168,864.73 : x
  2. Step 2: Convert to fraction form
    304,831.20/420,662.50 = 168,864.73/x
  3. Step 3: Cross multiply
    304,831.20x = 420,662.50 × 168,864.73
  4. Step 4: Simplify right side
    304,831.20x = 71,035,059,483.63
  5. Step 5: Solve for x
    x = 71,035,059,483.63/304,831.20
  6. Step 6: Final answer
    x = 233,030.80

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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.