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Finding the Fourth Proportional to 260,094.93, 390,064.63 and 135,367.89

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Solution

The fourth proportional to 260,094.93, 390,064.63 and 135,367.89 is: 203,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,094.93 : 390,064.63 = 135,367.89 : x
  2. Step 2: Convert to fraction form
    260,094.93/390,064.63 = 135,367.89/x
  3. Step 3: Cross multiply
    260,094.93x = 390,064.63 × 135,367.89
  4. Step 4: Simplify right side
    260,094.93x = 52,802,225,926.73
  5. Step 5: Solve for x
    x = 52,802,225,926.73/260,094.93
  6. Step 6: Final answer
    x = 203,011.36

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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.