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Finding the Fourth Proportional to 357,273.37, 535,502.37 and 143,904.64

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Solution

The fourth proportional to 357,273.37, 535,502.37 and 143,904.64 is: 215,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,273.37 : 535,502.37 = 143,904.64 : x
  2. Step 2: Convert to fraction form
    357,273.37/535,502.37 = 143,904.64/x
  3. Step 3: Cross multiply
    357,273.37x = 535,502.37 × 143,904.64
  4. Step 4: Simplify right side
    357,273.37x = 77,061,276,270.86
  5. Step 5: Solve for x
    x = 77,061,276,270.86/357,273.37
  6. Step 6: Final answer
    x = 215,692.75

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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.