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Finding the Fourth Proportional to 371,330.80, 556,996.20 and 347,711.20

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Solution

The fourth proportional to 371,330.80, 556,996.20 and 347,711.20 is: 521,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,330.80 : 556,996.20 = 347,711.20 : x
  2. Step 2: Convert to fraction form
    371,330.80/556,996.20 = 347,711.20/x
  3. Step 3: Cross multiply
    371,330.80x = 556,996.20 × 347,711.20
  4. Step 4: Simplify right side
    371,330.80x = 193,673,817,097.44
  5. Step 5: Solve for x
    x = 193,673,817,097.44/371,330.80
  6. Step 6: Final answer
    x = 521,566.80

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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.