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Finding the Fourth Proportional to 425,178, 586,694.52 and 243,880.56

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Solution

The fourth proportional to 425,178, 586,694.52 and 243,880.56 is: 336,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,178 : 586,694.52 = 243,880.56 : x
  2. Step 2: Convert to fraction form
    425,178/586,694.52 = 243,880.56/x
  3. Step 3: Cross multiply
    425,178x = 586,694.52 × 243,880.56
  4. Step 4: Simplify right side
    425,178x = 143,083,388,086.53
  5. Step 5: Solve for x
    x = 143,083,388,086.53/425,178
  6. Step 6: Final answer
    x = 336,525.85

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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.