Home / 387,061.15-534,126.21-214,990.27

Finding the Fourth Proportional to 387,061.15, 534,126.21 and 214,990.27

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Solution

The fourth proportional to 387,061.15, 534,126.21 and 214,990.27 is: 296,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,061.15 : 534,126.21 = 214,990.27 : x
  2. Step 2: Convert to fraction form
    387,061.15/534,126.21 = 214,990.27/x
  3. Step 3: Cross multiply
    387,061.15x = 534,126.21 × 214,990.27
  4. Step 4: Simplify right side
    387,061.15x = 114,831,938,101.98
  5. Step 5: Solve for x
    x = 114,831,938,101.98/387,061.15
  6. Step 6: Final answer
    x = 296,676.48

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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.