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Finding the Fourth Proportional to 280,026.18, 420,037.47 and 167,738.31

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Solution

The fourth proportional to 280,026.18, 420,037.47 and 167,738.31 is: 251,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,026.18 : 420,037.47 = 167,738.31 : x
  2. Step 2: Convert to fraction form
    280,026.18/420,037.47 = 167,738.31/x
  3. Step 3: Cross multiply
    280,026.18x = 420,037.47 × 167,738.31
  4. Step 4: Simplify right side
    280,026.18x = 70,456,375,354.48
  5. Step 5: Solve for x
    x = 70,456,375,354.48/280,026.18
  6. Step 6: Final answer
    x = 251,606.39

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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.