Home / 316,631.72-436,938.64-173,389.29

Finding the Fourth Proportional to 316,631.72, 436,938.64 and 173,389.29

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Solution

The fourth proportional to 316,631.72, 436,938.64 and 173,389.29 is: 239,270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,631.72 : 436,938.64 = 173,389.29 : x
  2. Step 2: Convert to fraction form
    316,631.72/436,938.64 = 173,389.29/x
  3. Step 3: Cross multiply
    316,631.72x = 436,938.64 × 173,389.29
  4. Step 4: Simplify right side
    316,631.72x = 75,760,480,563.17
  5. Step 5: Solve for x
    x = 75,760,480,563.17/316,631.72
  6. Step 6: Final answer
    x = 239,270.03

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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.