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Finding the Fourth Proportional to 346,758.08, 520,208.42 and 157,127.36

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Solution

The fourth proportional to 346,758.08, 520,208.42 and 157,127.36 is: 235,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,758.08 : 520,208.42 = 157,127.36 : x
  2. Step 2: Convert to fraction form
    346,758.08/520,208.42 = 157,127.36/x
  3. Step 3: Cross multiply
    346,758.08x = 520,208.42 × 157,127.36
  4. Step 4: Simplify right side
    346,758.08x = 81,738,975,684.37
  5. Step 5: Solve for x
    x = 81,738,975,684.37/346,758.08
  6. Step 6: Final answer
    x = 235,723.35

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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.