Home / 389,053.17-536,897.46-219,287.30

Finding the Fourth Proportional to 389,053.17, 536,897.46 and 219,287.30

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Solution

The fourth proportional to 389,053.17, 536,897.46 and 219,287.30 is: 302,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,053.17 : 536,897.46 = 219,287.30 : x
  2. Step 2: Convert to fraction form
    389,053.17/536,897.46 = 219,287.30/x
  3. Step 3: Cross multiply
    389,053.17x = 536,897.46 × 219,287.30
  4. Step 4: Simplify right side
    389,053.17x = 117,734,791,695.77
  5. Step 5: Solve for x
    x = 117,734,791,695.77/389,053.17
  6. Step 6: Final answer
    x = 302,618.77

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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.