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Finding the Fourth Proportional to 316,585.80, 436,888.44 and 173,354.64

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Solution

The fourth proportional to 316,585.80, 436,888.44 and 173,354.64 is: 239,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,585.80 : 436,888.44 = 173,354.64 : x
  2. Step 2: Convert to fraction form
    316,585.80/436,888.44 = 173,354.64/x
  3. Step 3: Cross multiply
    316,585.80x = 436,888.44 × 173,354.64
  4. Step 4: Simplify right side
    316,585.80x = 75,736,638,236.36
  5. Step 5: Solve for x
    x = 75,736,638,236.36/316,585.80
  6. Step 6: Final answer
    x = 239,229.42

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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.