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Finding the Fourth Proportional to 420,570.70, 630,700.17 and 150,656.77

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Solution

The fourth proportional to 420,570.70, 630,700.17 and 150,656.77 is: 225,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,570.70 : 630,700.17 = 150,656.77 : x
  2. Step 2: Convert to fraction form
    420,570.70/630,700.17 = 150,656.77/x
  3. Step 3: Cross multiply
    420,570.70x = 630,700.17 × 150,656.77
  4. Step 4: Simplify right side
    420,570.70x = 95,019,250,450.65
  5. Step 5: Solve for x
    x = 95,019,250,450.65/420,570.70
  6. Step 6: Final answer
    x = 225,929.32

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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.