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Finding the Fourth Proportional to 328,381.70, 492,572.55 and 118,040.90

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Solution

The fourth proportional to 328,381.70, 492,572.55 and 118,040.90 is: 177,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,381.70 : 492,572.55 = 118,040.90 : x
  2. Step 2: Convert to fraction form
    328,381.70/492,572.55 = 118,040.90/x
  3. Step 3: Cross multiply
    328,381.70x = 492,572.55 × 118,040.90
  4. Step 4: Simplify right side
    328,381.70x = 58,143,707,117.30
  5. Step 5: Solve for x
    x = 58,143,707,117.30/328,381.70
  6. Step 6: Final answer
    x = 177,061.35

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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.