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Finding the Fourth Proportional to 350,108.40, 525,421.80 and 231,740.40

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Solution

The fourth proportional to 350,108.40, 525,421.80 and 231,740.40 is: 347,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,108.40 : 525,421.80 = 231,740.40 : x
  2. Step 2: Convert to fraction form
    350,108.40/525,421.80 = 231,740.40/x
  3. Step 3: Cross multiply
    350,108.40x = 525,421.80 × 231,740.40
  4. Step 4: Simplify right side
    350,108.40x = 121,761,458,100.72
  5. Step 5: Solve for x
    x = 121,761,458,100.72/350,108.40
  6. Step 6: Final answer
    x = 347,782.17

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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.