Home / 389,770.17-537,884.64-210,922.17

Finding the Fourth Proportional to 389,770.17, 537,884.64 and 210,922.17

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Solution

The fourth proportional to 389,770.17, 537,884.64 and 210,922.17 is: 291,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,770.17 : 537,884.64 = 210,922.17 : x
  2. Step 2: Convert to fraction form
    389,770.17/537,884.64 = 210,922.17/x
  3. Step 3: Cross multiply
    389,770.17x = 537,884.64 × 210,922.17
  4. Step 4: Simplify right side
    389,770.17x = 113,451,795,478.47
  5. Step 5: Solve for x
    x = 113,451,795,478.47/389,770.17
  6. Step 6: Final answer
    x = 291,073.57

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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.