Home / 202,790.61-304,228.75-76,428.18

Finding the Fourth Proportional to 202,790.61, 304,228.75 and 76,428.18

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Solution

The fourth proportional to 202,790.61, 304,228.75 and 76,428.18 is: 114,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,790.61 : 304,228.75 = 76,428.18 : x
  2. Step 2: Convert to fraction form
    202,790.61/304,228.75 = 76,428.18/x
  3. Step 3: Cross multiply
    202,790.61x = 304,228.75 × 76,428.18
  4. Step 4: Simplify right side
    202,790.61x = 23,251,649,475.10
  5. Step 5: Solve for x
    x = 23,251,649,475.10/202,790.61
  6. Step 6: Final answer
    x = 114,658.41

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1.5x scale

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.