Home / 389,308.44-537,235.02-219,558.36

Finding the Fourth Proportional to 389,308.44, 537,235.02 and 219,558.36

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Solution

The fourth proportional to 389,308.44, 537,235.02 and 219,558.36 is: 302,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,308.44 : 537,235.02 = 219,558.36 : x
  2. Step 2: Convert to fraction form
    389,308.44/537,235.02 = 219,558.36/x
  3. Step 3: Cross multiply
    389,308.44x = 537,235.02 × 219,558.36
  4. Step 4: Simplify right side
    389,308.44x = 117,954,439,925.77
  5. Step 5: Solve for x
    x = 117,954,439,925.77/389,308.44
  6. Step 6: Final answer
    x = 302,984.54

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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.