Home / 389,112.12-536,975.10-210,264.12

Finding the Fourth Proportional to 389,112.12, 536,975.10 and 210,264.12

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Solution

The fourth proportional to 389,112.12, 536,975.10 and 210,264.12 is: 290,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,112.12 : 536,975.10 = 210,264.12 : x
  2. Step 2: Convert to fraction form
    389,112.12/536,975.10 = 210,264.12/x
  3. Step 3: Cross multiply
    389,112.12x = 536,975.10 × 210,264.12
  4. Step 4: Simplify right side
    389,112.12x = 112,906,596,863.41
  5. Step 5: Solve for x
    x = 112,906,596,863.41/389,112.12
  6. Step 6: Final answer
    x = 290,164.69

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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.