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Finding the Fourth Proportional to 147,898.40, 221,804.40 and 53,117.60

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Solution

The fourth proportional to 147,898.40, 221,804.40 and 53,117.60 is: 79,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,898.40 : 221,804.40 = 53,117.60 : x
  2. Step 2: Convert to fraction form
    147,898.40/221,804.40 = 53,117.60/x
  3. Step 3: Cross multiply
    147,898.40x = 221,804.40 × 53,117.60
  4. Step 4: Simplify right side
    147,898.40x = 11,781,717,397.44
  5. Step 5: Solve for x
    x = 11,781,717,397.44/147,898.40
  6. Step 6: Final answer
    x = 79,660.88

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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.