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Finding the Fourth Proportional to 456,645.90, 630,161.91 and 252,696.69

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Solution

The fourth proportional to 456,645.90, 630,161.91 and 252,696.69 is: 348,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,645.90 : 630,161.91 = 252,696.69 : x
  2. Step 2: Convert to fraction form
    456,645.90/630,161.91 = 252,696.69/x
  3. Step 3: Cross multiply
    456,645.90x = 630,161.91 × 252,696.69
  4. Step 4: Simplify right side
    456,645.90x = 159,239,828,821.08
  5. Step 5: Solve for x
    x = 159,239,828,821.08/456,645.90
  6. Step 6: Final answer
    x = 348,716.21

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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.