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Finding the Fourth Proportional to 357,277.08, 535,507.92 and 143,908.35

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Solution

The fourth proportional to 357,277.08, 535,507.92 and 143,908.35 is: 215,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,277.08 : 535,507.92 = 143,908.35 : x
  2. Step 2: Convert to fraction form
    357,277.08/535,507.92 = 143,908.35/x
  3. Step 3: Cross multiply
    357,277.08x = 535,507.92 × 143,908.35
  4. Step 4: Simplify right side
    357,277.08x = 77,064,061,179.13
  5. Step 5: Solve for x
    x = 77,064,061,179.13/357,277.08
  6. Step 6: Final answer
    x = 215,698.31

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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.