Home / 247,043.28-340,920-133,866.12

Finding the Fourth Proportional to 247,043.28, 340,920 and 133,866.12

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Solution

The fourth proportional to 247,043.28, 340,920 and 133,866.12 is: 184,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,043.28 : 340,920 = 133,866.12 : x
  2. Step 2: Convert to fraction form
    247,043.28/340,920 = 133,866.12/x
  3. Step 3: Cross multiply
    247,043.28x = 340,920 × 133,866.12
  4. Step 4: Simplify right side
    247,043.28x = 45,637,637,630.40
  5. Step 5: Solve for x
    x = 45,637,637,630.40/247,043.28
  6. Step 6: Final answer
    x = 184,735.39

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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.