Home / 326,290.08-489,145.20-115,900.32

Finding the Fourth Proportional to 326,290.08, 489,145.20 and 115,900.32

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Solution

The fourth proportional to 326,290.08, 489,145.20 and 115,900.32 is: 173,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,290.08 : 489,145.20 = 115,900.32 : x
  2. Step 2: Convert to fraction form
    326,290.08/489,145.20 = 115,900.32/x
  3. Step 3: Cross multiply
    326,290.08x = 489,145.20 × 115,900.32
  4. Step 4: Simplify right side
    326,290.08x = 56,692,085,206.46
  5. Step 5: Solve for x
    x = 56,692,085,206.46/326,290.08
  6. Step 6: Final answer
    x = 173,747.50

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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.