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Finding the Fourth Proportional to 385,583.78, 532,030.00 and 242,260.78

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Solution

The fourth proportional to 385,583.78, 532,030.00 and 242,260.78 is: 334,272.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,583.78 : 532,030.00 = 242,260.78 : x
  2. Step 2: Convert to fraction form
    385,583.78/532,030.00 = 242,260.78/x
  3. Step 3: Cross multiply
    385,583.78x = 532,030.00 × 242,260.78
  4. Step 4: Simplify right side
    385,583.78x = 128,890,003,114.44
  5. Step 5: Solve for x
    x = 128,890,003,114.44/385,583.78
  6. Step 6: Final answer
    x = 334,272.37

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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.