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Finding the Fourth Proportional to 368,705.52, 508,851.72 and 225,560.70

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Solution

The fourth proportional to 368,705.52, 508,851.72 and 225,560.70 is: 311,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,705.52 : 508,851.72 = 225,560.70 : x
  2. Step 2: Convert to fraction form
    368,705.52/508,851.72 = 225,560.70/x
  3. Step 3: Cross multiply
    368,705.52x = 508,851.72 × 225,560.70
  4. Step 4: Simplify right side
    368,705.52x = 114,776,950,159.40
  5. Step 5: Solve for x
    x = 114,776,950,159.40/368,705.52
  6. Step 6: Final answer
    x = 311,297.08

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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.