Home / 211,549.93-291,981.88-143,588.81

Finding the Fourth Proportional to 211,549.93, 291,981.88 and 143,588.81

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Solution

The fourth proportional to 211,549.93, 291,981.88 and 143,588.81 is: 198,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,549.93 : 291,981.88 = 143,588.81 : x
  2. Step 2: Convert to fraction form
    211,549.93/291,981.88 = 143,588.81/x
  3. Step 3: Cross multiply
    211,549.93x = 291,981.88 × 143,588.81
  4. Step 4: Simplify right side
    211,549.93x = 41,925,329,957.81
  5. Step 5: Solve for x
    x = 41,925,329,957.81/211,549.93
  6. Step 6: Final answer
    x = 198,181.72

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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.