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Finding the Fourth Proportional to 294,878.40, 441,005.40 and 247,639.20

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Solution

The fourth proportional to 294,878.40, 441,005.40 and 247,639.20 is: 370,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,878.40 : 441,005.40 = 247,639.20 : x
  2. Step 2: Convert to fraction form
    294,878.40/441,005.40 = 247,639.20/x
  3. Step 3: Cross multiply
    294,878.40x = 441,005.40 × 247,639.20
  4. Step 4: Simplify right side
    294,878.40x = 109,210,224,451.68
  5. Step 5: Solve for x
    x = 109,210,224,451.68/294,878.40
  6. Step 6: Final answer
    x = 370,356.81

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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.