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Finding the Fourth Proportional to 280,977.96, 387,775.44 and 167,798.28

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Solution

The fourth proportional to 280,977.96, 387,775.44 and 167,798.28 is: 231,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,977.96 : 387,775.44 = 167,798.28 : x
  2. Step 2: Convert to fraction form
    280,977.96/387,775.44 = 167,798.28/x
  3. Step 3: Cross multiply
    280,977.96x = 387,775.44 × 167,798.28
  4. Step 4: Simplify right side
    280,977.96x = 65,068,051,858.24
  5. Step 5: Solve for x
    x = 65,068,051,858.24/280,977.96
  6. Step 6: Final answer
    x = 231,577.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.