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Finding the Fourth Proportional to 274,752.60, 412,128.90 and 154,686.30

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Solution

The fourth proportional to 274,752.60, 412,128.90 and 154,686.30 is: 232,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,752.60 : 412,128.90 = 154,686.30 : x
  2. Step 2: Convert to fraction form
    274,752.60/412,128.90 = 154,686.30/x
  3. Step 3: Cross multiply
    274,752.60x = 412,128.90 × 154,686.30
  4. Step 4: Simplify right side
    274,752.60x = 63,750,694,664.07
  5. Step 5: Solve for x
    x = 63,750,694,664.07/274,752.60
  6. Step 6: Final answer
    x = 232,029.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.