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Finding the Fourth Proportional to 420,175.08, 630,098.16 and 146,552.20

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Solution

The fourth proportional to 420,175.08, 630,098.16 and 146,552.20 is: 219,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,175.08 : 630,098.16 = 146,552.20 : x
  2. Step 2: Convert to fraction form
    420,175.08/630,098.16 = 146,552.20/x
  3. Step 3: Cross multiply
    420,175.08x = 630,098.16 × 146,552.20
  4. Step 4: Simplify right side
    420,175.08x = 92,342,271,563.95
  5. Step 5: Solve for x
    x = 92,342,271,563.95/420,175.08
  6. Step 6: Final answer
    x = 219,770.94

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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.