Home / 1,030.08-1,545.38-336.80

Finding the Fourth Proportional to 1,030.08, 1,545.38 and 336.80

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Solution

The fourth proportional to 1,030.08, 1,545.38 and 336.80 is: 505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.08 : 1,545.38 = 336.80 : x
  2. Step 2: Convert to fraction form
    1,030.08/1,545.38 = 336.80/x
  3. Step 3: Cross multiply
    1,030.08x = 1,545.38 × 336.80
  4. Step 4: Simplify right side
    1,030.08x = 520,474.57
  5. Step 5: Solve for x
    x = 520,474.57/1,030.08
  6. Step 6: Final answer
    x = 505.28

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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.