Home / 288,334.11-397,896.92-157,510.17

Finding the Fourth Proportional to 288,334.11, 397,896.92 and 157,510.17

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Solution

The fourth proportional to 288,334.11, 397,896.92 and 157,510.17 is: 217,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,334.11 : 397,896.92 = 157,510.17 : x
  2. Step 2: Convert to fraction form
    288,334.11/397,896.92 = 157,510.17/x
  3. Step 3: Cross multiply
    288,334.11x = 397,896.92 × 157,510.17
  4. Step 4: Simplify right side
    288,334.11x = 62,672,810,871.79
  5. Step 5: Solve for x
    x = 62,672,810,871.79/288,334.11
  6. Step 6: Final answer
    x = 217,361.77

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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.