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Finding the Fourth Proportional to 337,420.60, 465,338.65 and 279,968.80

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Solution

The fourth proportional to 337,420.60, 465,338.65 and 279,968.80 is: 386,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,420.60 : 465,338.65 = 279,968.80 : x
  2. Step 2: Convert to fraction form
    337,420.60/465,338.65 = 279,968.80/x
  3. Step 3: Cross multiply
    337,420.60x = 465,338.65 × 279,968.80
  4. Step 4: Simplify right side
    337,420.60x = 130,280,303,434.12
  5. Step 5: Solve for x
    x = 130,280,303,434.12/337,420.60
  6. Step 6: Final answer
    x = 386,106.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.