Home / 230,554.08-318,164.02-128,579.67

Finding the Fourth Proportional to 230,554.08, 318,164.02 and 128,579.67

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Solution

The fourth proportional to 230,554.08, 318,164.02 and 128,579.67 is: 177,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,554.08 : 318,164.02 = 128,579.67 : x
  2. Step 2: Convert to fraction form
    230,554.08/318,164.02 = 128,579.67/x
  3. Step 3: Cross multiply
    230,554.08x = 318,164.02 × 128,579.67
  4. Step 4: Simplify right side
    230,554.08x = 40,909,424,376.02
  5. Step 5: Solve for x
    x = 40,909,424,376.02/230,554.08
  6. Step 6: Final answer
    x = 177,439.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.