Home / 326,555.36-489,890.45-149,080.31

Finding the Fourth Proportional to 326,555.36, 489,890.45 and 149,080.31

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Solution

The fourth proportional to 326,555.36, 489,890.45 and 149,080.31 is: 223,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,555.36 : 489,890.45 = 149,080.31 : x
  2. Step 2: Convert to fraction form
    326,555.36/489,890.45 = 149,080.31/x
  3. Step 3: Cross multiply
    326,555.36x = 489,890.45 × 149,080.31
  4. Step 4: Simplify right side
    326,555.36x = 73,033,020,152.04
  5. Step 5: Solve for x
    x = 73,033,020,152.04/326,555.36
  6. Step 6: Final answer
    x = 223,646.67

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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.