Home / 326,095.20-489,191.40-115,715.52

Finding the Fourth Proportional to 326,095.20, 489,191.40 and 115,715.52

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Solution

The fourth proportional to 326,095.20, 489,191.40 and 115,715.52 is: 173,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,095.20 : 489,191.40 = 115,715.52 : x
  2. Step 2: Convert to fraction form
    326,095.20/489,191.40 = 115,715.52/x
  3. Step 3: Cross multiply
    326,095.20x = 489,191.40 × 115,715.52
  4. Step 4: Simplify right side
    326,095.20x = 56,607,037,230.53
  5. Step 5: Solve for x
    x = 56,607,037,230.53/326,095.20
  6. Step 6: Final answer
    x = 173,590.53

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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.