Home / 393,117.30-589,675.95-108,807.30

Finding the Fourth Proportional to 393,117.30, 589,675.95 and 108,807.30

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Solution

The fourth proportional to 393,117.30, 589,675.95 and 108,807.30 is: 163,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,117.30 : 589,675.95 = 108,807.30 : x
  2. Step 2: Convert to fraction form
    393,117.30/589,675.95 = 108,807.30/x
  3. Step 3: Cross multiply
    393,117.30x = 589,675.95 × 108,807.30
  4. Step 4: Simplify right side
    393,117.30x = 64,161,047,994.44
  5. Step 5: Solve for x
    x = 64,161,047,994.44/393,117.30
  6. Step 6: Final answer
    x = 163,210.95

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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.