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Finding the Fourth Proportional to 274,368.28, 413,608.85 and 256,079.50

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Solution

The fourth proportional to 274,368.28, 413,608.85 and 256,079.50 is: 386,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,368.28 : 413,608.85 = 256,079.50 : x
  2. Step 2: Convert to fraction form
    274,368.28/413,608.85 = 256,079.50/x
  3. Step 3: Cross multiply
    274,368.28x = 413,608.85 × 256,079.50
  4. Step 4: Simplify right side
    274,368.28x = 105,916,747,503.58
  5. Step 5: Solve for x
    x = 105,916,747,503.58/274,368.28
  6. Step 6: Final answer
    x = 386,038.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.