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Finding the Fourth Proportional to 260,315.10, 359,128.80 and 169,638.03

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Solution

The fourth proportional to 260,315.10, 359,128.80 and 169,638.03 is: 234,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,315.10 : 359,128.80 = 169,638.03 : x
  2. Step 2: Convert to fraction form
    260,315.10/359,128.80 = 169,638.03/x
  3. Step 3: Cross multiply
    260,315.10x = 359,128.80 × 169,638.03
  4. Step 4: Simplify right side
    260,315.10x = 60,921,902,148.26
  5. Step 5: Solve for x
    x = 60,921,902,148.26/260,315.10
  6. Step 6: Final answer
    x = 234,031.38

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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.