Home / 389,261.30-537,180.68-219,495.47

Finding the Fourth Proportional to 389,261.30, 537,180.68 and 219,495.47

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Solution

The fourth proportional to 389,261.30, 537,180.68 and 219,495.47 is: 302,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,261.30 : 537,180.68 = 219,495.47 : x
  2. Step 2: Convert to fraction form
    389,261.30/537,180.68 = 219,495.47/x
  3. Step 3: Cross multiply
    389,261.30x = 537,180.68 × 219,495.47
  4. Step 4: Simplify right side
    389,261.30x = 117,908,723,694.36
  5. Step 5: Solve for x
    x = 117,908,723,694.36/389,261.30
  6. Step 6: Final answer
    x = 302,903.80

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1.5x scale

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.