Home / 371,739.31-512,983.52-210,591.07

Finding the Fourth Proportional to 371,739.31, 512,983.52 and 210,591.07

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Solution

The fourth proportional to 371,739.31, 512,983.52 and 210,591.07 is: 290,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,739.31 : 512,983.52 = 210,591.07 : x
  2. Step 2: Convert to fraction form
    371,739.31/512,983.52 = 210,591.07/x
  3. Step 3: Cross multiply
    371,739.31x = 512,983.52 × 210,591.07
  4. Step 4: Simplify right side
    371,739.31x = 108,029,745,804.25
  5. Step 5: Solve for x
    x = 108,029,745,804.25/371,739.31
  6. Step 6: Final answer
    x = 290,606.20

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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.