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Finding the Fourth Proportional to 152,490.62, 228,647.43 and 57,728.12

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Solution

The fourth proportional to 152,490.62, 228,647.43 and 57,728.12 is: 86,558.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,490.62 : 228,647.43 = 57,728.12 : x
  2. Step 2: Convert to fraction form
    152,490.62/228,647.43 = 57,728.12/x
  3. Step 3: Cross multiply
    152,490.62x = 228,647.43 × 57,728.12
  4. Step 4: Simplify right side
    152,490.62x = 13,199,385,133.49
  5. Step 5: Solve for x
    x = 13,199,385,133.49/152,490.62
  6. Step 6: Final answer
    x = 86,558.67

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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.