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Finding the Fourth Proportional to 522,810.40, 784,215.60 and 167,860.30

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Solution

The fourth proportional to 522,810.40, 784,215.60 and 167,860.30 is: 251,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,810.40 : 784,215.60 = 167,860.30 : x
  2. Step 2: Convert to fraction form
    522,810.40/784,215.60 = 167,860.30/x
  3. Step 3: Cross multiply
    522,810.40x = 784,215.60 × 167,860.30
  4. Step 4: Simplify right side
    522,810.40x = 131,638,665,880.68
  5. Step 5: Solve for x
    x = 131,638,665,880.68/522,810.40
  6. Step 6: Final answer
    x = 251,790.45

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Similar ratio
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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.