Home / 459,128.07-688,297.67-159,569.73

Finding the Fourth Proportional to 459,128.07, 688,297.67 and 159,569.73

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Solution

The fourth proportional to 459,128.07, 688,297.67 and 159,569.73 is: 239,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,128.07 : 688,297.67 = 159,569.73 : x
  2. Step 2: Convert to fraction form
    459,128.07/688,297.67 = 159,569.73/x
  3. Step 3: Cross multiply
    459,128.07x = 688,297.67 × 159,569.73
  4. Step 4: Simplify right side
    459,128.07x = 109,831,472,563.68
  5. Step 5: Solve for x
    x = 109,831,472,563.68/459,128.07
  6. Step 6: Final answer
    x = 239,217.51

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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.