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Finding the Fourth Proportional to 443,996.32, 612,702.48 and 242,788

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Solution

The fourth proportional to 443,996.32, 612,702.48 and 242,788 is: 335,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,996.32 : 612,702.48 = 242,788 : x
  2. Step 2: Convert to fraction form
    443,996.32/612,702.48 = 242,788/x
  3. Step 3: Cross multiply
    443,996.32x = 612,702.48 × 242,788
  4. Step 4: Simplify right side
    443,996.32x = 148,756,809,714.24
  5. Step 5: Solve for x
    x = 148,756,809,714.24/443,996.32
  6. Step 6: Final answer
    x = 335,040.64

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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.