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Finding the Fourth Proportional to 243,311.90, 364,719.45 and 164,434.10

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Solution

The fourth proportional to 243,311.90, 364,719.45 and 164,434.10 is: 246,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,311.90 : 364,719.45 = 164,434.10 : x
  2. Step 2: Convert to fraction form
    243,311.90/364,719.45 = 164,434.10/x
  3. Step 3: Cross multiply
    243,311.90x = 364,719.45 × 164,434.10
  4. Step 4: Simplify right side
    243,311.90x = 59,972,314,513.25
  5. Step 5: Solve for x
    x = 59,972,314,513.25/243,311.90
  6. Step 6: Final answer
    x = 246,483.28

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1.5x scale

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.