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Finding the Fourth Proportional to 456,682.72, 630,206.56 and 252,742.20

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Solution

The fourth proportional to 456,682.72, 630,206.56 and 252,742.20 is: 348,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,682.72 : 630,206.56 = 252,742.20 : x
  2. Step 2: Convert to fraction form
    456,682.72/630,206.56 = 252,742.20/x
  3. Step 3: Cross multiply
    456,682.72x = 630,206.56 × 252,742.20
  4. Step 4: Simplify right side
    456,682.72x = 159,279,792,428.83
  5. Step 5: Solve for x
    x = 159,279,792,428.83/456,682.72
  6. Step 6: Final answer
    x = 348,775.61

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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.