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Finding the Fourth Proportional to 315,796.60, 474,132.30 and 249,311.80

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Solution

The fourth proportional to 315,796.60, 474,132.30 and 249,311.80 is: 374,313.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,796.60 : 474,132.30 = 249,311.80 : x
  2. Step 2: Convert to fraction form
    315,796.60/474,132.30 = 249,311.80/x
  3. Step 3: Cross multiply
    315,796.60x = 474,132.30 × 249,311.80
  4. Step 4: Simplify right side
    315,796.60x = 118,206,777,151.14
  5. Step 5: Solve for x
    x = 118,206,777,151.14/315,796.60
  6. Step 6: Final answer
    x = 374,313.01

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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.