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Finding the Fourth Proportional to 509,254.25, 763,878.41 and 130,174.47

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Solution

The fourth proportional to 509,254.25, 763,878.41 and 130,174.47 is: 195,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,254.25 : 763,878.41 = 130,174.47 : x
  2. Step 2: Convert to fraction form
    509,254.25/763,878.41 = 130,174.47/x
  3. Step 3: Cross multiply
    509,254.25x = 763,878.41 × 130,174.47
  4. Step 4: Simplify right side
    509,254.25x = 99,437,466,515.32
  5. Step 5: Solve for x
    x = 99,437,466,515.32/509,254.25
  6. Step 6: Final answer
    x = 195,260.95

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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.