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Finding the Fourth Proportional to 295,820.30, 443,730.45 and 278,324.30

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Solution

The fourth proportional to 295,820.30, 443,730.45 and 278,324.30 is: 417,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,820.30 : 443,730.45 = 278,324.30 : x
  2. Step 2: Convert to fraction form
    295,820.30/443,730.45 = 278,324.30/x
  3. Step 3: Cross multiply
    295,820.30x = 443,730.45 × 278,324.30
  4. Step 4: Simplify right side
    295,820.30x = 123,500,966,884.94
  5. Step 5: Solve for x
    x = 123,500,966,884.94/295,820.30
  6. Step 6: Final answer
    x = 417,486.45

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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.