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Finding the Fourth Proportional to 231,343.60, 347,533.80 and 221,897.20

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Solution

The fourth proportional to 231,343.60, 347,533.80 and 221,897.20 is: 333,343.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,343.60 : 347,533.80 = 221,897.20 : x
  2. Step 2: Convert to fraction form
    231,343.60/347,533.80 = 221,897.20/x
  3. Step 3: Cross multiply
    231,343.60x = 347,533.80 × 221,897.20
  4. Step 4: Simplify right side
    231,343.60x = 77,116,777,125.36
  5. Step 5: Solve for x
    x = 77,116,777,125.36/231,343.60
  6. Step 6: Final answer
    x = 333,343.03

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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.