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Finding the Fourth Proportional to 228,592.81, 315,463.20 and 130,474.10

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Solution

The fourth proportional to 228,592.81, 315,463.20 and 130,474.10 is: 180,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,592.81 : 315,463.20 = 130,474.10 : x
  2. Step 2: Convert to fraction form
    228,592.81/315,463.20 = 130,474.10/x
  3. Step 3: Cross multiply
    228,592.81x = 315,463.20 × 130,474.10
  4. Step 4: Simplify right side
    228,592.81x = 41,159,777,103.12
  5. Step 5: Solve for x
    x = 41,159,777,103.12/228,592.81
  6. Step 6: Final answer
    x = 180,057.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.