Home / 210,427.71-290,405.07-119,783.72

Finding the Fourth Proportional to 210,427.71, 290,405.07 and 119,783.72

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Solution

The fourth proportional to 210,427.71, 290,405.07 and 119,783.72 is: 165,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,427.71 : 290,405.07 = 119,783.72 : x
  2. Step 2: Convert to fraction form
    210,427.71/290,405.07 = 119,783.72/x
  3. Step 3: Cross multiply
    210,427.71x = 290,405.07 × 119,783.72
  4. Step 4: Simplify right side
    210,427.71x = 34,785,798,139.44
  5. Step 5: Solve for x
    x = 34,785,798,139.44/210,427.71
  6. Step 6: Final answer
    x = 165,309.97

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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.