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Finding the Fourth Proportional to 344,314.80, 516,472.20 and 209,595.60

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Solution

The fourth proportional to 344,314.80, 516,472.20 and 209,595.60 is: 314,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,314.80 : 516,472.20 = 209,595.60 : x
  2. Step 2: Convert to fraction form
    344,314.80/516,472.20 = 209,595.60/x
  3. Step 3: Cross multiply
    344,314.80x = 516,472.20 × 209,595.60
  4. Step 4: Simplify right side
    344,314.80x = 108,250,300,642.32
  5. Step 5: Solve for x
    x = 108,250,300,642.32/344,314.80
  6. Step 6: Final answer
    x = 314,393.40

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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.