Home / 469,981.51-648,575.30-255,121.72

Finding the Fourth Proportional to 469,981.51, 648,575.30 and 255,121.72

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Solution

The fourth proportional to 469,981.51, 648,575.30 and 255,121.72 is: 352,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,981.51 : 648,575.30 = 255,121.72 : x
  2. Step 2: Convert to fraction form
    469,981.51/648,575.30 = 255,121.72/x
  3. Step 3: Cross multiply
    469,981.51x = 648,575.30 × 255,121.72
  4. Step 4: Simplify right side
    469,981.51x = 165,465,645,101.88
  5. Step 5: Solve for x
    x = 165,465,645,101.88/469,981.51
  6. Step 6: Final answer
    x = 352,068.42

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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.