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Finding the Fourth Proportional to 337,680.80, 506,521.20 and 211,709.60

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Solution

The fourth proportional to 337,680.80, 506,521.20 and 211,709.60 is: 317,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,680.80 : 506,521.20 = 211,709.60 : x
  2. Step 2: Convert to fraction form
    337,680.80/506,521.20 = 211,709.60/x
  3. Step 3: Cross multiply
    337,680.80x = 506,521.20 × 211,709.60
  4. Step 4: Simplify right side
    337,680.80x = 107,235,400,643.52
  5. Step 5: Solve for x
    x = 107,235,400,643.52/337,680.80
  6. Step 6: Final answer
    x = 317,564.40

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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.