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Finding the Fourth Proportional to 211,737.54, 317,325.96 and 155,313.45

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Solution

The fourth proportional to 211,737.54, 317,325.96 and 155,313.45 is: 232,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,737.54 : 317,325.96 = 155,313.45 : x
  2. Step 2: Convert to fraction form
    211,737.54/317,325.96 = 155,313.45/x
  3. Step 3: Cross multiply
    211,737.54x = 317,325.96 × 155,313.45
  4. Step 4: Simplify right side
    211,737.54x = 49,284,990,058.98
  5. Step 5: Solve for x
    x = 49,284,990,058.98/211,737.54
  6. Step 6: Final answer
    x = 232,764.54

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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.