Home / 210,247.18-290,205.47-129,699.82

Finding the Fourth Proportional to 210,247.18, 290,205.47 and 129,699.82

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Solution

The fourth proportional to 210,247.18, 290,205.47 and 129,699.82 is: 179,025.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,247.18 : 290,205.47 = 129,699.82 : x
  2. Step 2: Convert to fraction form
    210,247.18/290,205.47 = 129,699.82/x
  3. Step 3: Cross multiply
    210,247.18x = 290,205.47 × 129,699.82
  4. Step 4: Simplify right side
    210,247.18x = 37,639,597,222.02
  5. Step 5: Solve for x
    x = 37,639,597,222.02/210,247.18
  6. Step 6: Final answer
    x = 179,025.46

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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.