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Finding the Fourth Proportional to 228,471.40, 342,188.70 and 144,490.60

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Solution

The fourth proportional to 228,471.40, 342,188.70 and 144,490.60 is: 216,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,471.40 : 342,188.70 = 144,490.60 : x
  2. Step 2: Convert to fraction form
    228,471.40/342,188.70 = 144,490.60/x
  3. Step 3: Cross multiply
    228,471.40x = 342,188.70 × 144,490.60
  4. Step 4: Simplify right side
    228,471.40x = 49,443,050,576.22
  5. Step 5: Solve for x
    x = 49,443,050,576.22/228,471.40
  6. Step 6: Final answer
    x = 216,408.05

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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.