Home / 211,521.18-291,950.01-143,651.28

Finding the Fourth Proportional to 211,521.18, 291,950.01 and 143,651.28

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Solution

The fourth proportional to 211,521.18, 291,950.01 and 143,651.28 is: 198,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,521.18 : 291,950.01 = 143,651.28 : x
  2. Step 2: Convert to fraction form
    211,521.18/291,950.01 = 143,651.28/x
  3. Step 3: Cross multiply
    211,521.18x = 291,950.01 × 143,651.28
  4. Step 4: Simplify right side
    211,521.18x = 41,938,992,632.51
  5. Step 5: Solve for x
    x = 41,938,992,632.51/211,521.18
  6. Step 6: Final answer
    x = 198,273.25

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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.