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Finding the Fourth Proportional to 350,347.88, 525,521.81 and 84,108.40

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Solution

The fourth proportional to 350,347.88, 525,521.81 and 84,108.40 is: 126,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,347.88 : 525,521.81 = 84,108.40 : x
  2. Step 2: Convert to fraction form
    350,347.88/525,521.81 = 84,108.40/x
  3. Step 3: Cross multiply
    350,347.88x = 525,521.81 × 84,108.40
  4. Step 4: Simplify right side
    350,347.88x = 44,200,797,500.67
  5. Step 5: Solve for x
    x = 44,200,797,500.67/350,347.88
  6. Step 6: Final answer
    x = 126,162.59

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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.