Home / 394,962.32-545,045.76-213,673.76

Finding the Fourth Proportional to 394,962.32, 545,045.76 and 213,673.76

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Solution

The fourth proportional to 394,962.32, 545,045.76 and 213,673.76 is: 294,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,962.32 : 545,045.76 = 213,673.76 : x
  2. Step 2: Convert to fraction form
    394,962.32/545,045.76 = 213,673.76/x
  3. Step 3: Cross multiply
    394,962.32x = 545,045.76 × 213,673.76
  4. Step 4: Simplify right side
    394,962.32x = 116,461,976,911.26
  5. Step 5: Solve for x
    x = 116,461,976,911.26/394,962.32
  6. Step 6: Final answer
    x = 294,868.58

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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.