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Finding the Fourth Proportional to 147,353.80, 221,030.70 and 53,847.40

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Solution

The fourth proportional to 147,353.80, 221,030.70 and 53,847.40 is: 80,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,353.80 : 221,030.70 = 53,847.40 : x
  2. Step 2: Convert to fraction form
    147,353.80/221,030.70 = 53,847.40/x
  3. Step 3: Cross multiply
    147,353.80x = 221,030.70 × 53,847.40
  4. Step 4: Simplify right side
    147,353.80x = 11,901,928,515.18
  5. Step 5: Solve for x
    x = 11,901,928,515.18/147,353.80
  6. Step 6: Final answer
    x = 80,771.10

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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.