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Finding the Fourth Proportional to 345,561.18, 518,349.96 and 92,841.98

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Solution

The fourth proportional to 345,561.18, 518,349.96 and 92,841.98 is: 139,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,561.18 : 518,349.96 = 92,841.98 : x
  2. Step 2: Convert to fraction form
    345,561.18/518,349.96 = 92,841.98/x
  3. Step 3: Cross multiply
    345,561.18x = 518,349.96 × 92,841.98
  4. Step 4: Simplify right side
    345,561.18x = 48,124,636,619.32
  5. Step 5: Solve for x
    x = 48,124,636,619.32/345,561.18
  6. Step 6: Final answer
    x = 139,265.17

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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.