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Finding the Fourth Proportional to 373,070.96, 559,485.48 and 123,686

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Solution

The fourth proportional to 373,070.96, 559,485.48 and 123,686 is: 185,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,070.96 : 559,485.48 = 123,686 : x
  2. Step 2: Convert to fraction form
    373,070.96/559,485.48 = 123,686/x
  3. Step 3: Cross multiply
    373,070.96x = 559,485.48 × 123,686
  4. Step 4: Simplify right side
    373,070.96x = 69,200,521,079.28
  5. Step 5: Solve for x
    x = 69,200,521,079.28/373,070.96
  6. Step 6: Final answer
    x = 185,488.90

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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.