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Finding the Fourth Proportional to 189,841.80, 284,762.70 and 49,614.60

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Solution

The fourth proportional to 189,841.80, 284,762.70 and 49,614.60 is: 74,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,841.80 : 284,762.70 = 49,614.60 : x
  2. Step 2: Convert to fraction form
    189,841.80/284,762.70 = 49,614.60/x
  3. Step 3: Cross multiply
    189,841.80x = 284,762.70 × 49,614.60
  4. Step 4: Simplify right side
    189,841.80x = 14,128,387,455.42
  5. Step 5: Solve for x
    x = 14,128,387,455.42/189,841.80
  6. Step 6: Final answer
    x = 74,421.90

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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.