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Finding the Fourth Proportional to 341,654.40, 512,153.55 and 265,710.83

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Solution

The fourth proportional to 341,654.40, 512,153.55 and 265,710.83 is: 398,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,654.40 : 512,153.55 = 265,710.83 : x
  2. Step 2: Convert to fraction form
    341,654.40/512,153.55 = 265,710.83/x
  3. Step 3: Cross multiply
    341,654.40x = 512,153.55 × 265,710.83
  4. Step 4: Simplify right side
    341,654.40x = 136,084,742,297.18
  5. Step 5: Solve for x
    x = 136,084,742,297.18/341,654.40
  6. Step 6: Final answer
    x = 398,311.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.