Home / 661,669.51-992,410.43-212,332.24

Finding the Fourth Proportional to 661,669.51, 992,410.43 and 212,332.24

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Solution

The fourth proportional to 661,669.51, 992,410.43 and 212,332.24 is: 318,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,669.51 : 992,410.43 = 212,332.24 : x
  2. Step 2: Convert to fraction form
    661,669.51/992,410.43 = 212,332.24/x
  3. Step 3: Cross multiply
    661,669.51x = 992,410.43 × 212,332.24
  4. Step 4: Simplify right side
    661,669.51x = 210,720,725,392.18
  5. Step 5: Solve for x
    x = 210,720,725,392.18/661,669.51
  6. Step 6: Final answer
    x = 318,468.24

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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.