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Finding the Fourth Proportional to 152,000.20, 228,000.30 and 143,835.40

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Solution

The fourth proportional to 152,000.20, 228,000.30 and 143,835.40 is: 215,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,000.20 : 228,000.30 = 143,835.40 : x
  2. Step 2: Convert to fraction form
    152,000.20/228,000.30 = 143,835.40/x
  3. Step 3: Cross multiply
    152,000.20x = 228,000.30 × 143,835.40
  4. Step 4: Simplify right side
    152,000.20x = 32,794,514,350.62
  5. Step 5: Solve for x
    x = 32,794,514,350.62/152,000.20
  6. Step 6: Final answer
    x = 215,753.10

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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.