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Finding the Fourth Proportional to 255,410.32, 383,114.76 and 115,004.56

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Solution

The fourth proportional to 255,410.32, 383,114.76 and 115,004.56 is: 172,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,410.32 : 383,114.76 = 115,004.56 : x
  2. Step 2: Convert to fraction form
    255,410.32/383,114.76 = 115,004.56/x
  3. Step 3: Cross multiply
    255,410.32x = 383,114.76 × 115,004.56
  4. Step 4: Simplify right side
    255,410.32x = 44,059,944,403.31
  5. Step 5: Solve for x
    x = 44,059,944,403.31/255,410.32
  6. Step 6: Final answer
    x = 172,506.52

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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.