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Finding the Fourth Proportional to 190,998.40, 286,803.60 and 151,880.80

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Solution

The fourth proportional to 190,998.40, 286,803.60 and 151,880.80 is: 228,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,998.40 : 286,803.60 = 151,880.80 : x
  2. Step 2: Convert to fraction form
    190,998.40/286,803.60 = 151,880.80/x
  3. Step 3: Cross multiply
    190,998.40x = 286,803.60 × 151,880.80
  4. Step 4: Simplify right side
    190,998.40x = 43,559,960,210.88
  5. Step 5: Solve for x
    x = 43,559,960,210.88/190,998.40
  6. Step 6: Final answer
    x = 228,064.53

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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.