Home / 247,205.79-341,151.18-139,773.51

Finding the Fourth Proportional to 247,205.79, 341,151.18 and 139,773.51

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Solution

The fourth proportional to 247,205.79, 341,151.18 and 139,773.51 is: 192,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,205.79 : 341,151.18 = 139,773.51 : x
  2. Step 2: Convert to fraction form
    247,205.79/341,151.18 = 139,773.51/x
  3. Step 3: Cross multiply
    247,205.79x = 341,151.18 × 139,773.51
  4. Step 4: Simplify right side
    247,205.79x = 47,683,897,869.24
  5. Step 5: Solve for x
    x = 47,683,897,869.24/247,205.79
  6. Step 6: Final answer
    x = 192,891.51

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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.