Home / 389,772.12-537,887.10-210,924.12

Finding the Fourth Proportional to 389,772.12, 537,887.10 and 210,924.12

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Solution

The fourth proportional to 389,772.12, 537,887.10 and 210,924.12 is: 291,076.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,772.12 : 537,887.10 = 210,924.12 : x
  2. Step 2: Convert to fraction form
    389,772.12/537,887.10 = 210,924.12/x
  3. Step 3: Cross multiply
    389,772.12x = 537,887.10 × 210,924.12
  4. Step 4: Simplify right side
    389,772.12x = 113,453,363,226.85
  5. Step 5: Solve for x
    x = 113,453,363,226.85/389,772.12
  6. Step 6: Final answer
    x = 291,076.14

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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.