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Finding the Fourth Proportional to 443,652.72, 612,239.40 and 242,448.72

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Solution

The fourth proportional to 443,652.72, 612,239.40 and 242,448.72 is: 334,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,652.72 : 612,239.40 = 242,448.72 : x
  2. Step 2: Convert to fraction form
    443,652.72/612,239.40 = 242,448.72/x
  3. Step 3: Cross multiply
    443,652.72x = 612,239.40 × 242,448.72
  4. Step 4: Simplify right side
    443,652.72x = 148,436,658,863.57
  5. Step 5: Solve for x
    x = 148,436,658,863.57/443,652.72
  6. Step 6: Final answer
    x = 334,578.49

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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.