Home / 211,390.54-291,718.87-115,895.23

Finding the Fourth Proportional to 211,390.54, 291,718.87 and 115,895.23

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Solution

The fourth proportional to 211,390.54, 291,718.87 and 115,895.23 is: 159,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,390.54 : 291,718.87 = 115,895.23 : x
  2. Step 2: Convert to fraction form
    211,390.54/291,718.87 = 115,895.23/x
  3. Step 3: Cross multiply
    211,390.54x = 291,718.87 × 115,895.23
  4. Step 4: Simplify right side
    211,390.54x = 33,808,825,533.99
  5. Step 5: Solve for x
    x = 33,808,825,533.99/211,390.54
  6. Step 6: Final answer
    x = 159,935.38

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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.