Home / 210,879.56-291,013.47-115,386.23

Finding the Fourth Proportional to 210,879.56, 291,013.47 and 115,386.23

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Solution

The fourth proportional to 210,879.56, 291,013.47 and 115,386.23 is: 159,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,879.56 : 291,013.47 = 115,386.23 : x
  2. Step 2: Convert to fraction form
    210,879.56/291,013.47 = 115,386.23/x
  3. Step 3: Cross multiply
    210,879.56x = 291,013.47 × 115,386.23
  4. Step 4: Simplify right side
    210,879.56x = 33,578,945,727.45
  5. Step 5: Solve for x
    x = 33,578,945,727.45/210,879.56
  6. Step 6: Final answer
    x = 159,232.82

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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.