Home / 356,738.32-534,681-271,838.98

Finding the Fourth Proportional to 356,738.32, 534,681 and 271,838.98

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Solution

The fourth proportional to 356,738.32, 534,681 and 271,838.98 is: 407,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,738.32 : 534,681 = 271,838.98 : x
  2. Step 2: Convert to fraction form
    356,738.32/534,681 = 271,838.98/x
  3. Step 3: Cross multiply
    356,738.32x = 534,681 × 271,838.98
  4. Step 4: Simplify right side
    356,738.32x = 145,347,137,665.38
  5. Step 5: Solve for x
    x = 145,347,137,665.38/356,738.32
  6. Step 6: Final answer
    x = 407,433.49

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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.