Home / 389,821.04-537,953.10-210,973.04

Finding the Fourth Proportional to 389,821.04, 537,953.10 and 210,973.04

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Solution

The fourth proportional to 389,821.04, 537,953.10 and 210,973.04 is: 291,142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,821.04 : 537,953.10 = 210,973.04 : x
  2. Step 2: Convert to fraction form
    389,821.04/537,953.10 = 210,973.04/x
  3. Step 3: Cross multiply
    389,821.04x = 537,953.10 × 210,973.04
  4. Step 4: Simplify right side
    389,821.04x = 113,493,600,884.42
  5. Step 5: Solve for x
    x = 113,493,600,884.42/389,821.04
  6. Step 6: Final answer
    x = 291,142.83

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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.