Home / 264,400.35-397,332.47-257,991.04

Finding the Fourth Proportional to 264,400.35, 397,332.47 and 257,991.04

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Solution

The fourth proportional to 264,400.35, 397,332.47 and 257,991.04 is: 387,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,400.35 : 397,332.47 = 257,991.04 : x
  2. Step 2: Convert to fraction form
    264,400.35/397,332.47 = 257,991.04/x
  3. Step 3: Cross multiply
    264,400.35x = 397,332.47 × 257,991.04
  4. Step 4: Simplify right side
    264,400.35x = 102,508,217,161.07
  5. Step 5: Solve for x
    x = 102,508,217,161.07/264,400.35
  6. Step 6: Final answer
    x = 387,700.76

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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.