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Finding the Fourth Proportional to 500,898.08, 751,470 and 145,915.36

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Solution

The fourth proportional to 500,898.08, 751,470 and 145,915.36 is: 218,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,898.08 : 751,470 = 145,915.36 : x
  2. Step 2: Convert to fraction form
    500,898.08/751,470 = 145,915.36/x
  3. Step 3: Cross multiply
    500,898.08x = 751,470 × 145,915.36
  4. Step 4: Simplify right side
    500,898.08x = 109,651,015,579.20
  5. Step 5: Solve for x
    x = 109,651,015,579.20/500,898.08
  6. Step 6: Final answer
    x = 218,908.84

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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.