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Finding the Fourth Proportional to 152,315.60, 228,311.40 and 73,378.40

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Solution

The fourth proportional to 152,315.60, 228,311.40 and 73,378.40 is: 109,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,315.60 : 228,311.40 = 73,378.40 : x
  2. Step 2: Convert to fraction form
    152,315.60/228,311.40 = 73,378.40/x
  3. Step 3: Cross multiply
    152,315.60x = 228,311.40 × 73,378.40
  4. Step 4: Simplify right side
    152,315.60x = 16,753,125,233.76
  5. Step 5: Solve for x
    x = 16,753,125,233.76/152,315.60
  6. Step 6: Final answer
    x = 109,989.56

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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.