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Finding the Fourth Proportional to 260,980.72, 360,142.50 and 147,803.47

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Solution

The fourth proportional to 260,980.72, 360,142.50 and 147,803.47 is: 203,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,980.72 : 360,142.50 = 147,803.47 : x
  2. Step 2: Convert to fraction form
    260,980.72/360,142.50 = 147,803.47/x
  3. Step 3: Cross multiply
    260,980.72x = 360,142.50 × 147,803.47
  4. Step 4: Simplify right side
    260,980.72x = 53,230,310,848.38
  5. Step 5: Solve for x
    x = 53,230,310,848.38/260,980.72
  6. Step 6: Final answer
    x = 203,962.62

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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.