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Finding the Fourth Proportional to 334,539.40, 501,128.70 and 207,790.60

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Solution

The fourth proportional to 334,539.40, 501,128.70 and 207,790.60 is: 311,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,539.40 : 501,128.70 = 207,790.60 : x
  2. Step 2: Convert to fraction form
    334,539.40/501,128.70 = 207,790.60/x
  3. Step 3: Cross multiply
    334,539.40x = 501,128.70 × 207,790.60
  4. Step 4: Simplify right side
    334,539.40x = 104,129,833,250.22
  5. Step 5: Solve for x
    x = 104,129,833,250.22/334,539.40
  6. Step 6: Final answer
    x = 311,263.29

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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.