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Finding the Fourth Proportional to 170,245.40, 255,368.10 and 45,586.40

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Solution

The fourth proportional to 170,245.40, 255,368.10 and 45,586.40 is: 68,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,245.40 : 255,368.10 = 45,586.40 : x
  2. Step 2: Convert to fraction form
    170,245.40/255,368.10 = 45,586.40/x
  3. Step 3: Cross multiply
    170,245.40x = 255,368.10 × 45,586.40
  4. Step 4: Simplify right side
    170,245.40x = 11,641,312,353.84
  5. Step 5: Solve for x
    x = 11,641,312,353.84/170,245.40
  6. Step 6: Final answer
    x = 68,379.60

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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.