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Finding the Fourth Proportional to 304,265.40, 455,999.70 and 163,721.40

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Solution

The fourth proportional to 304,265.40, 455,999.70 and 163,721.40 is: 245,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,265.40 : 455,999.70 = 163,721.40 : x
  2. Step 2: Convert to fraction form
    304,265.40/455,999.70 = 163,721.40/x
  3. Step 3: Cross multiply
    304,265.40x = 455,999.70 × 163,721.40
  4. Step 4: Simplify right side
    304,265.40x = 74,656,909,283.58
  5. Step 5: Solve for x
    x = 74,656,909,283.58/304,265.40
  6. Step 6: Final answer
    x = 245,367.73

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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.