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Finding the Fourth Proportional to 217,271.60, 325,907.40 and 146,769.20

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Solution

The fourth proportional to 217,271.60, 325,907.40 and 146,769.20 is: 220,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,271.60 : 325,907.40 = 146,769.20 : x
  2. Step 2: Convert to fraction form
    217,271.60/325,907.40 = 146,769.20/x
  3. Step 3: Cross multiply
    217,271.60x = 325,907.40 × 146,769.20
  4. Step 4: Simplify right side
    217,271.60x = 47,833,168,372.08
  5. Step 5: Solve for x
    x = 47,833,168,372.08/217,271.60
  6. Step 6: Final answer
    x = 220,153.80

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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.