Home / 328,719.98-492,880.41-128,800.85

Finding the Fourth Proportional to 328,719.98, 492,880.41 and 128,800.85

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Solution

The fourth proportional to 328,719.98, 492,880.41 and 128,800.85 is: 193,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,719.98 : 492,880.41 = 128,800.85 : x
  2. Step 2: Convert to fraction form
    328,719.98/492,880.41 = 128,800.85/x
  3. Step 3: Cross multiply
    328,719.98x = 492,880.41 × 128,800.85
  4. Step 4: Simplify right side
    328,719.98x = 63,483,413,291.95
  5. Step 5: Solve for x
    x = 63,483,413,291.95/328,719.98
  6. Step 6: Final answer
    x = 193,123.07

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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.