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Finding the Fourth Proportional to 525,015.30, 787,638.15 and 169,968.90

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Solution

The fourth proportional to 525,015.30, 787,638.15 and 169,968.90 is: 254,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,015.30 : 787,638.15 = 169,968.90 : x
  2. Step 2: Convert to fraction form
    525,015.30/787,638.15 = 169,968.90/x
  3. Step 3: Cross multiply
    525,015.30x = 787,638.15 × 169,968.90
  4. Step 4: Simplify right side
    525,015.30x = 133,873,989,953.54
  5. Step 5: Solve for x
    x = 133,873,989,953.54/525,015.30
  6. Step 6: Final answer
    x = 254,990.64

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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.