Home / 316,371.90-436,585.19-187,312.04

Finding the Fourth Proportional to 316,371.90, 436,585.19 and 187,312.04

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Solution

The fourth proportional to 316,371.90, 436,585.19 and 187,312.04 is: 258,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,371.90 : 436,585.19 = 187,312.04 : x
  2. Step 2: Convert to fraction form
    316,371.90/436,585.19 = 187,312.04/x
  3. Step 3: Cross multiply
    316,371.90x = 436,585.19 × 187,312.04
  4. Step 4: Simplify right side
    316,371.90x = 81,777,662,572.69
  5. Step 5: Solve for x
    x = 81,777,662,572.69/316,371.90
  6. Step 6: Final answer
    x = 258,485.86

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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.