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Finding the Fourth Proportional to 350,059.60, 525,089.40 and 266,078.80

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Solution

The fourth proportional to 350,059.60, 525,089.40 and 266,078.80 is: 399,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,059.60 : 525,089.40 = 266,078.80 : x
  2. Step 2: Convert to fraction form
    350,059.60/525,089.40 = 266,078.80/x
  3. Step 3: Cross multiply
    350,059.60x = 525,089.40 × 266,078.80
  4. Step 4: Simplify right side
    350,059.60x = 139,715,157,444.72
  5. Step 5: Solve for x
    x = 139,715,157,444.72/350,059.60
  6. Step 6: Final answer
    x = 399,118.20

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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.