Home / 439,052.64-658,127.04-172,705.28

Finding the Fourth Proportional to 439,052.64, 658,127.04 and 172,705.28

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Solution

The fourth proportional to 439,052.64, 658,127.04 and 172,705.28 is: 258,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,052.64 : 658,127.04 = 172,705.28 : x
  2. Step 2: Convert to fraction form
    439,052.64/658,127.04 = 172,705.28/x
  3. Step 3: Cross multiply
    439,052.64x = 658,127.04 × 172,705.28
  4. Step 4: Simplify right side
    439,052.64x = 113,662,014,718.77
  5. Step 5: Solve for x
    x = 113,662,014,718.77/439,052.64
  6. Step 6: Final answer
    x = 258,880.15

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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.