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Finding the Fourth Proportional to 147,483.20, 221,311.20 and 53,998.40

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Solution

The fourth proportional to 147,483.20, 221,311.20 and 53,998.40 is: 81,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,483.20 : 221,311.20 = 53,998.40 : x
  2. Step 2: Convert to fraction form
    147,483.20/221,311.20 = 53,998.40/x
  3. Step 3: Cross multiply
    147,483.20x = 221,311.20 × 53,998.40
  4. Step 4: Simplify right side
    147,483.20x = 11,950,450,702.08
  5. Step 5: Solve for x
    x = 11,950,450,702.08/147,483.20
  6. Step 6: Final answer
    x = 81,029.23

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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.