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Finding the Fourth Proportional to 316,673.74, 436,998 and 173,434.96

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Solution

The fourth proportional to 316,673.74, 436,998 and 173,434.96 is: 239,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,673.74 : 436,998 = 173,434.96 : x
  2. Step 2: Convert to fraction form
    316,673.74/436,998 = 173,434.96/x
  3. Step 3: Cross multiply
    316,673.74x = 436,998 × 173,434.96
  4. Step 4: Simplify right side
    316,673.74x = 75,790,730,650.08
  5. Step 5: Solve for x
    x = 75,790,730,650.08/316,673.74
  6. Step 6: Final answer
    x = 239,333.80

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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.