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Finding the Fourth Proportional to 171,210.90, 256,808.76 and 52,881.45

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Solution

The fourth proportional to 171,210.90, 256,808.76 and 52,881.45 is: 79,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,210.90 : 256,808.76 = 52,881.45 : x
  2. Step 2: Convert to fraction form
    171,210.90/256,808.76 = 52,881.45/x
  3. Step 3: Cross multiply
    171,210.90x = 256,808.76 × 52,881.45
  4. Step 4: Simplify right side
    171,210.90x = 13,580,419,601.50
  5. Step 5: Solve for x
    x = 13,580,419,601.50/171,210.90
  6. Step 6: Final answer
    x = 79,319.83

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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.