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Finding the Fourth Proportional to 270,720.46, 404,143.12 and 235,300.78

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Solution

The fourth proportional to 270,720.46, 404,143.12 and 235,300.78 is: 351,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,720.46 : 404,143.12 = 235,300.78 : x
  2. Step 2: Convert to fraction form
    270,720.46/404,143.12 = 235,300.78/x
  3. Step 3: Cross multiply
    270,720.46x = 404,143.12 × 235,300.78
  4. Step 4: Simplify right side
    270,720.46x = 95,095,191,367.63
  5. Step 5: Solve for x
    x = 95,095,191,367.63/270,720.46
  6. Step 6: Final answer
    x = 351,267.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.