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Finding the Fourth Proportional to 304,688.88, 420,468.30 and 168,722.28

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Solution

The fourth proportional to 304,688.88, 420,468.30 and 168,722.28 is: 232,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,688.88 : 420,468.30 = 168,722.28 : x
  2. Step 2: Convert to fraction form
    304,688.88/420,468.30 = 168,722.28/x
  3. Step 3: Cross multiply
    304,688.88x = 420,468.30 × 168,722.28
  4. Step 4: Simplify right side
    304,688.88x = 70,942,370,243.72
  5. Step 5: Solve for x
    x = 70,942,370,243.72/304,688.88
  6. Step 6: Final answer
    x = 232,835.44

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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.