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Finding the Fourth Proportional to 451,639.88, 623,205.39 and 258,060.13

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Solution

The fourth proportional to 451,639.88, 623,205.39 and 258,060.13 is: 356,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,639.88 : 623,205.39 = 258,060.13 : x
  2. Step 2: Convert to fraction form
    451,639.88/623,205.39 = 258,060.13/x
  3. Step 3: Cross multiply
    451,639.88x = 623,205.39 × 258,060.13
  4. Step 4: Simplify right side
    451,639.88x = 160,824,459,553.77
  5. Step 5: Solve for x
    x = 160,824,459,553.77/451,639.88
  6. Step 6: Final answer
    x = 356,090.04

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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.