Home / 211,208.67-291,467.93-126,345.78

Finding the Fourth Proportional to 211,208.67, 291,467.93 and 126,345.78

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Solution

The fourth proportional to 211,208.67, 291,467.93 and 126,345.78 is: 174,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,208.67 : 291,467.93 = 126,345.78 : x
  2. Step 2: Convert to fraction form
    211,208.67/291,467.93 = 126,345.78/x
  3. Step 3: Cross multiply
    211,208.67x = 291,467.93 × 126,345.78
  4. Step 4: Simplify right side
    211,208.67x = 36,825,742,329.11
  5. Step 5: Solve for x
    x = 36,825,742,329.11/211,208.67
  6. Step 6: Final answer
    x = 174,357.15

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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.