Home / 412,260.77-618,374.98-172,312.70

Finding the Fourth Proportional to 412,260.77, 618,374.98 and 172,312.70

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Solution

The fourth proportional to 412,260.77, 618,374.98 and 172,312.70 is: 258,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,260.77 : 618,374.98 = 172,312.70 : x
  2. Step 2: Convert to fraction form
    412,260.77/618,374.98 = 172,312.70/x
  3. Step 3: Cross multiply
    412,260.77x = 618,374.98 × 172,312.70
  4. Step 4: Simplify right side
    412,260.77x = 106,553,862,416.25
  5. Step 5: Solve for x
    x = 106,553,862,416.25/412,260.77
  6. Step 6: Final answer
    x = 258,462.29

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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.