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Finding the Fourth Proportional to 340,354.80, 510,532.20 and 293,115.60

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Solution

The fourth proportional to 340,354.80, 510,532.20 and 293,115.60 is: 439,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,354.80 : 510,532.20 = 293,115.60 : x
  2. Step 2: Convert to fraction form
    340,354.80/510,532.20 = 293,115.60/x
  3. Step 3: Cross multiply
    340,354.80x = 510,532.20 × 293,115.60
  4. Step 4: Simplify right side
    340,354.80x = 149,644,952,122.32
  5. Step 5: Solve for x
    x = 149,644,952,122.32/340,354.80
  6. Step 6: Final answer
    x = 439,673.40

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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.