Home / 280,500.21-387,118.29-167,322.96

Finding the Fourth Proportional to 280,500.21, 387,118.29 and 167,322.96

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Solution

The fourth proportional to 280,500.21, 387,118.29 and 167,322.96 is: 230,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,500.21 : 387,118.29 = 167,322.96 : x
  2. Step 2: Convert to fraction form
    280,500.21/387,118.29 = 167,322.96/x
  3. Step 3: Cross multiply
    280,500.21x = 387,118.29 × 167,322.96
  4. Step 4: Simplify right side
    280,500.21x = 64,773,778,152.94
  5. Step 5: Solve for x
    x = 64,773,778,152.94/280,500.21
  6. Step 6: Final answer
    x = 230,922.39

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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.