Home / 272,612.98-409,002.84-139,587.33

Finding the Fourth Proportional to 272,612.98, 409,002.84 and 139,587.33

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Solution

The fourth proportional to 272,612.98, 409,002.84 and 139,587.33 is: 209,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,612.98 : 409,002.84 = 139,587.33 : x
  2. Step 2: Convert to fraction form
    272,612.98/409,002.84 = 139,587.33/x
  3. Step 3: Cross multiply
    272,612.98x = 409,002.84 × 139,587.33
  4. Step 4: Simplify right side
    272,612.98x = 57,091,614,398.02
  5. Step 5: Solve for x
    x = 57,091,614,398.02/272,612.98
  6. Step 6: Final answer
    x = 209,423.69

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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.