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Finding the Fourth Proportional to 375,779.84, 518,569.82 and 212,433.82

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Solution

The fourth proportional to 375,779.84, 518,569.82 and 212,433.82 is: 293,155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,779.84 : 518,569.82 = 212,433.82 : x
  2. Step 2: Convert to fraction form
    375,779.84/518,569.82 = 212,433.82/x
  3. Step 3: Cross multiply
    375,779.84x = 518,569.82 × 212,433.82
  4. Step 4: Simplify right side
    375,779.84x = 110,161,764,144.29
  5. Step 5: Solve for x
    x = 110,161,764,144.29/375,779.84
  6. Step 6: Final answer
    x = 293,155.07

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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.