Home / 420,181.35-630,272.04-153,833.91

Finding the Fourth Proportional to 420,181.35, 630,272.04 and 153,833.91

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Solution

The fourth proportional to 420,181.35, 630,272.04 and 153,833.91 is: 230,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,181.35 : 630,272.04 = 153,833.91 : x
  2. Step 2: Convert to fraction form
    420,181.35/630,272.04 = 153,833.91/x
  3. Step 3: Cross multiply
    420,181.35x = 630,272.04 × 153,833.91
  4. Step 4: Simplify right side
    420,181.35x = 96,957,212,276.88
  5. Step 5: Solve for x
    x = 96,957,212,276.88/420,181.35
  6. Step 6: Final answer
    x = 230,750.87

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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.