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Finding the Fourth Proportional to 509,029.60, 763,447.20 and 154,055.20

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Solution

The fourth proportional to 509,029.60, 763,447.20 and 154,055.20 is: 231,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,029.60 : 763,447.20 = 154,055.20 : x
  2. Step 2: Convert to fraction form
    509,029.60/763,447.20 = 154,055.20/x
  3. Step 3: Cross multiply
    509,029.60x = 763,447.20 × 154,055.20
  4. Step 4: Simplify right side
    509,029.60x = 117,613,011,085.44
  5. Step 5: Solve for x
    x = 117,613,011,085.44/509,029.60
  6. Step 6: Final answer
    x = 231,053.38

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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.