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Finding the Fourth Proportional to 152,150.40, 228,225.60 and 81,291.60

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Solution

The fourth proportional to 152,150.40, 228,225.60 and 81,291.60 is: 121,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,150.40 : 228,225.60 = 81,291.60 : x
  2. Step 2: Convert to fraction form
    152,150.40/228,225.60 = 81,291.60/x
  3. Step 3: Cross multiply
    152,150.40x = 228,225.60 × 81,291.60
  4. Step 4: Simplify right side
    152,150.40x = 18,552,824,184.96
  5. Step 5: Solve for x
    x = 18,552,824,184.96/152,150.40
  6. Step 6: Final answer
    x = 121,937.40

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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.