Home / 331,478.40-457,428.10-202,632.67

Finding the Fourth Proportional to 331,478.40, 457,428.10 and 202,632.67

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Solution

The fourth proportional to 331,478.40, 457,428.10 and 202,632.67 is: 279,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,478.40 : 457,428.10 = 202,632.67 : x
  2. Step 2: Convert to fraction form
    331,478.40/457,428.10 = 202,632.67/x
  3. Step 3: Cross multiply
    331,478.40x = 457,428.10 × 202,632.67
  4. Step 4: Simplify right side
    331,478.40x = 92,689,873,935.72
  5. Step 5: Solve for x
    x = 92,689,873,935.72/331,478.40
  6. Step 6: Final answer
    x = 279,625.68

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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.