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Finding the Fourth Proportional to 316,352.90, 436,566.92 and 173,112.90

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Solution

The fourth proportional to 316,352.90, 436,566.92 and 173,112.90 is: 238,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,352.90 : 436,566.92 = 173,112.90 : x
  2. Step 2: Convert to fraction form
    316,352.90/436,566.92 = 173,112.90/x
  3. Step 3: Cross multiply
    316,352.90x = 436,566.92 × 173,112.90
  4. Step 4: Simplify right side
    316,352.90x = 75,575,365,565.27
  5. Step 5: Solve for x
    x = 75,575,365,565.27/316,352.90
  6. Step 6: Final answer
    x = 238,895.76

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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.