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Finding the Fourth Proportional to 304,820.76, 420,652.58 and 168,863.50

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Solution

The fourth proportional to 304,820.76, 420,652.58 and 168,863.50 is: 233,031.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,820.76 : 420,652.58 = 168,863.50 : x
  2. Step 2: Convert to fraction form
    304,820.76/420,652.58 = 168,863.50/x
  3. Step 3: Cross multiply
    304,820.76x = 420,652.58 × 168,863.50
  4. Step 4: Simplify right side
    304,820.76x = 71,032,866,942.83
  5. Step 5: Solve for x
    x = 71,032,866,942.83/304,820.76
  6. Step 6: Final answer
    x = 233,031.59

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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.