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Finding the Fourth Proportional to 513,480.12, 770,237.75 and 176,517.89

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Solution

The fourth proportional to 513,480.12, 770,237.75 and 176,517.89 is: 264,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,480.12 : 770,237.75 = 176,517.89 : x
  2. Step 2: Convert to fraction form
    513,480.12/770,237.75 = 176,517.89/x
  3. Step 3: Cross multiply
    513,480.12x = 770,237.75 × 176,517.89
  4. Step 4: Simplify right side
    513,480.12x = 135,960,742,027.16
  5. Step 5: Solve for x
    x = 135,960,742,027.16/513,480.12
  6. Step 6: Final answer
    x = 264,782.88

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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.