Home / 316,280.84-436,537.63-218,301.65

Finding the Fourth Proportional to 316,280.84, 436,537.63 and 218,301.65

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Solution

The fourth proportional to 316,280.84, 436,537.63 and 218,301.65 is: 301,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,280.84 : 436,537.63 = 218,301.65 : x
  2. Step 2: Convert to fraction form
    316,280.84/436,537.63 = 218,301.65/x
  3. Step 3: Cross multiply
    316,280.84x = 436,537.63 × 218,301.65
  4. Step 4: Simplify right side
    316,280.84x = 95,296,882,187.65
  5. Step 5: Solve for x
    x = 95,296,882,187.65/316,280.84
  6. Step 6: Final answer
    x = 301,304.63

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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.