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Finding the Fourth Proportional to 189,894.60, 284,820.30 and 49,667.40

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Solution

The fourth proportional to 189,894.60, 284,820.30 and 49,667.40 is: 74,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,894.60 : 284,820.30 = 49,667.40 : x
  2. Step 2: Convert to fraction form
    189,894.60/284,820.30 = 49,667.40/x
  3. Step 3: Cross multiply
    189,894.60x = 284,820.30 × 49,667.40
  4. Step 4: Simplify right side
    189,894.60x = 14,146,283,768.22
  5. Step 5: Solve for x
    x = 14,146,283,768.22/189,894.60
  6. Step 6: Final answer
    x = 74,495.45

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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.