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Finding the Fourth Proportional to 350,660.70, 525,991.05 and 291,538.80

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Solution

The fourth proportional to 350,660.70, 525,991.05 and 291,538.80 is: 437,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,660.70 : 525,991.05 = 291,538.80 : x
  2. Step 2: Convert to fraction form
    350,660.70/525,991.05 = 291,538.80/x
  3. Step 3: Cross multiply
    350,660.70x = 525,991.05 × 291,538.80
  4. Step 4: Simplify right side
    350,660.70x = 153,346,799,527.74
  5. Step 5: Solve for x
    x = 153,346,799,527.74/350,660.70
  6. Step 6: Final answer
    x = 437,308.20

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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.