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Finding the Fourth Proportional to 149,969.60, 225,040.80 and 56,542.40

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Solution

The fourth proportional to 149,969.60, 225,040.80 and 56,542.40 is: 84,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,969.60 : 225,040.80 = 56,542.40 : x
  2. Step 2: Convert to fraction form
    149,969.60/225,040.80 = 56,542.40/x
  3. Step 3: Cross multiply
    149,969.60x = 225,040.80 × 56,542.40
  4. Step 4: Simplify right side
    149,969.60x = 12,724,346,929.92
  5. Step 5: Solve for x
    x = 12,724,346,929.92/149,969.60
  6. Step 6: Final answer
    x = 84,846.18

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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.