Home / 210,350.43-290,281.46-129,745.71

Finding the Fourth Proportional to 210,350.43, 290,281.46 and 129,745.71

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Solution

The fourth proportional to 210,350.43, 290,281.46 and 129,745.71 is: 179,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,350.43 : 290,281.46 = 129,745.71 : x
  2. Step 2: Convert to fraction form
    210,350.43/290,281.46 = 129,745.71/x
  3. Step 3: Cross multiply
    210,350.43x = 290,281.46 × 129,745.71
  4. Step 4: Simplify right side
    210,350.43x = 37,662,773,478.81
  5. Step 5: Solve for x
    x = 37,662,773,478.81/210,350.43
  6. Step 6: Final answer
    x = 179,047.76

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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.