Home / 280,017.18-420,023.97-167,729.31

Finding the Fourth Proportional to 280,017.18, 420,023.97 and 167,729.31

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Solution

The fourth proportional to 280,017.18, 420,023.97 and 167,729.31 is: 251,592.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,017.18 : 420,023.97 = 167,729.31 : x
  2. Step 2: Convert to fraction form
    280,017.18/420,023.97 = 167,729.31/x
  3. Step 3: Cross multiply
    280,017.18x = 420,023.97 × 167,729.31
  4. Step 4: Simplify right side
    280,017.18x = 70,450,330,671.56
  5. Step 5: Solve for x
    x = 70,450,330,671.56/280,017.18
  6. Step 6: Final answer
    x = 251,592.89

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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.