Home / 280,347.21-386,929.35-167,177.25

Finding the Fourth Proportional to 280,347.21, 386,929.35 and 167,177.25

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Solution

The fourth proportional to 280,347.21, 386,929.35 and 167,177.25 is: 230,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,347.21 : 386,929.35 = 167,177.25 : x
  2. Step 2: Convert to fraction form
    280,347.21/386,929.35 = 167,177.25/x
  3. Step 3: Cross multiply
    280,347.21x = 386,929.35 × 167,177.25
  4. Step 4: Simplify right side
    280,347.21x = 64,685,784,677.29
  5. Step 5: Solve for x
    x = 64,685,784,677.29/280,347.21
  6. Step 6: Final answer
    x = 230,734.54

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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.