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Finding the Fourth Proportional to 316,285.64, 436,480.49 and 173,048.76

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Solution

The fourth proportional to 316,285.64, 436,480.49 and 173,048.76 is: 238,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,285.64 : 436,480.49 = 173,048.76 : x
  2. Step 2: Convert to fraction form
    316,285.64/436,480.49 = 173,048.76/x
  3. Step 3: Cross multiply
    316,285.64x = 436,480.49 × 173,048.76
  4. Step 4: Simplify right side
    316,285.64x = 75,532,407,558.69
  5. Step 5: Solve for x
    x = 75,532,407,558.69/316,285.64
  6. Step 6: Final answer
    x = 238,810.74

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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.