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Finding the Fourth Proportional to 443,556.50, 612,123.09 and 242,365.46

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Solution

The fourth proportional to 443,556.50, 612,123.09 and 242,365.46 is: 334,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,556.50 : 612,123.09 = 242,365.46 : x
  2. Step 2: Convert to fraction form
    443,556.50/612,123.09 = 242,365.46/x
  3. Step 3: Cross multiply
    443,556.50x = 612,123.09 × 242,365.46
  4. Step 4: Simplify right side
    443,556.50x = 148,357,494,284.47
  5. Step 5: Solve for x
    x = 148,357,494,284.47/443,556.50
  6. Step 6: Final answer
    x = 334,472.60

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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.