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Finding the Fourth Proportional to 260,988.35, 360,157.79 and 153,565.34

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Solution

The fourth proportional to 260,988.35, 360,157.79 and 153,565.34 is: 211,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,988.35 : 360,157.79 = 153,565.34 : x
  2. Step 2: Convert to fraction form
    260,988.35/360,157.79 = 153,565.34/x
  3. Step 3: Cross multiply
    260,988.35x = 360,157.79 × 153,565.34
  4. Step 4: Simplify right side
    260,988.35x = 55,307,751,674.21
  5. Step 5: Solve for x
    x = 55,307,751,674.21/260,988.35
  6. Step 6: Final answer
    x = 211,916.56

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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.