Home / 387,401.48-534,520.02-226,164.20

Finding the Fourth Proportional to 387,401.48, 534,520.02 and 226,164.20

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Solution

The fourth proportional to 387,401.48, 534,520.02 and 226,164.20 is: 312,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,401.48 : 534,520.02 = 226,164.20 : x
  2. Step 2: Convert to fraction form
    387,401.48/534,520.02 = 226,164.20/x
  3. Step 3: Cross multiply
    387,401.48x = 534,520.02 × 226,164.20
  4. Step 4: Simplify right side
    387,401.48x = 120,889,292,707.28
  5. Step 5: Solve for x
    x = 120,889,292,707.28/387,401.48
  6. Step 6: Final answer
    x = 312,051.71

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1.5x scale

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.