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Finding the Fourth Proportional to 344,599.80, 516,899.70 and 265,867.80

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Solution

The fourth proportional to 344,599.80, 516,899.70 and 265,867.80 is: 398,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,599.80 : 516,899.70 = 265,867.80 : x
  2. Step 2: Convert to fraction form
    344,599.80/516,899.70 = 265,867.80/x
  3. Step 3: Cross multiply
    344,599.80x = 516,899.70 × 265,867.80
  4. Step 4: Simplify right side
    344,599.80x = 137,426,986,059.66
  5. Step 5: Solve for x
    x = 137,426,986,059.66/344,599.80
  6. Step 6: Final answer
    x = 398,801.70

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1.5x scale

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.