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Finding the Fourth Proportional to 346,750.80, 518,974.20 and 251,710.80

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Solution

The fourth proportional to 346,750.80, 518,974.20 and 251,710.80 is: 376,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,750.80 : 518,974.20 = 251,710.80 : x
  2. Step 2: Convert to fraction form
    346,750.80/518,974.20 = 251,710.80/x
  3. Step 3: Cross multiply
    346,750.80x = 518,974.20 × 251,710.80
  4. Step 4: Simplify right side
    346,750.80x = 130,631,411,061.36
  5. Step 5: Solve for x
    x = 130,631,411,061.36/346,750.80
  6. Step 6: Final answer
    x = 376,729.95

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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.