Home / 471,981.85-651,332.40-257,121.40

Finding the Fourth Proportional to 471,981.85, 651,332.40 and 257,121.40

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Solution

The fourth proportional to 471,981.85, 651,332.40 and 257,121.40 is: 354,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,981.85 : 651,332.40 = 257,121.40 : x
  2. Step 2: Convert to fraction form
    471,981.85/651,332.40 = 257,121.40/x
  3. Step 3: Cross multiply
    471,981.85x = 651,332.40 × 257,121.40
  4. Step 4: Simplify right side
    471,981.85x = 167,471,498,553.36
  5. Step 5: Solve for x
    x = 167,471,498,553.36/471,981.85
  6. Step 6: Final answer
    x = 354,826.14

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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.