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Finding the Fourth Proportional to 242,354.12, 334,408.80 and 134,921.42

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Solution

The fourth proportional to 242,354.12, 334,408.80 and 134,921.42 is: 186,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,354.12 : 334,408.80 = 134,921.42 : x
  2. Step 2: Convert to fraction form
    242,354.12/334,408.80 = 134,921.42/x
  3. Step 3: Cross multiply
    242,354.12x = 334,408.80 × 134,921.42
  4. Step 4: Simplify right side
    242,354.12x = 45,118,910,156.50
  5. Step 5: Solve for x
    x = 45,118,910,156.50/242,354.12
  6. Step 6: Final answer
    x = 186,169.35

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1.5x scale

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.