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Finding the Fourth Proportional to 248,411.80, 346,989.20 and 248,411.80

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Solution

The fourth proportional to 248,411.80, 346,989.20 and 248,411.80 is: 346,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,411.80 : 346,989.20 = 248,411.80 : x
  2. Step 2: Convert to fraction form
    248,411.80/346,989.20 = 248,411.80/x
  3. Step 3: Cross multiply
    248,411.80x = 346,989.20 × 248,411.80
  4. Step 4: Simplify right side
    248,411.80x = 86,196,211,752.56
  5. Step 5: Solve for x
    x = 86,196,211,752.56/248,411.80
  6. Step 6: Final answer
    x = 346,989.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.