Home / 393,312.30-589,968.45-109,002.30

Finding the Fourth Proportional to 393,312.30, 589,968.45 and 109,002.30

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Solution

The fourth proportional to 393,312.30, 589,968.45 and 109,002.30 is: 163,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,312.30 : 589,968.45 = 109,002.30 : x
  2. Step 2: Convert to fraction form
    393,312.30/589,968.45 = 109,002.30/x
  3. Step 3: Cross multiply
    393,312.30x = 589,968.45 × 109,002.30
  4. Step 4: Simplify right side
    393,312.30x = 64,307,917,977.44
  5. Step 5: Solve for x
    x = 64,307,917,977.44/393,312.30
  6. Step 6: Final answer
    x = 163,503.45

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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.