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Finding the Fourth Proportional to 276,410.60, 381,412.68 and 174,397.58

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Solution

The fourth proportional to 276,410.60, 381,412.68 and 174,397.58 is: 240,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,410.60 : 381,412.68 = 174,397.58 : x
  2. Step 2: Convert to fraction form
    276,410.60/381,412.68 = 174,397.58/x
  3. Step 3: Cross multiply
    276,410.60x = 381,412.68 × 174,397.58
  4. Step 4: Simplify right side
    276,410.60x = 66,517,448,373.31
  5. Step 5: Solve for x
    x = 66,517,448,373.31/276,410.60
  6. Step 6: Final answer
    x = 240,647.24

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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.