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Finding the Fourth Proportional to 434,398.49, 651,626.90 and 118,858.13

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Solution

The fourth proportional to 434,398.49, 651,626.90 and 118,858.13 is: 178,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,398.49 : 651,626.90 = 118,858.13 : x
  2. Step 2: Convert to fraction form
    434,398.49/651,626.90 = 118,858.13/x
  3. Step 3: Cross multiply
    434,398.49x = 651,626.90 × 118,858.13
  4. Step 4: Simplify right side
    434,398.49x = 77,451,153,828.59
  5. Step 5: Solve for x
    x = 77,451,153,828.59/434,398.49
  6. Step 6: Final answer
    x = 178,295.17

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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.