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Finding the Fourth Proportional to 260,410.79, 359,377.13 and 152,979.88

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Solution

The fourth proportional to 260,410.79, 359,377.13 and 152,979.88 is: 211,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,410.79 : 359,377.13 = 152,979.88 : x
  2. Step 2: Convert to fraction form
    260,410.79/359,377.13 = 152,979.88/x
  3. Step 3: Cross multiply
    260,410.79x = 359,377.13 × 152,979.88
  4. Step 4: Simplify right side
    260,410.79x = 54,977,470,222.14
  5. Step 5: Solve for x
    x = 54,977,470,222.14/260,410.79
  6. Step 6: Final answer
    x = 211,118.25

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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.