Home / 289,613.14-434,492.07-204,390.40

Finding the Fourth Proportional to 289,613.14, 434,492.07 and 204,390.40

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Solution

The fourth proportional to 289,613.14, 434,492.07 and 204,390.40 is: 306,636.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,613.14 : 434,492.07 = 204,390.40 : x
  2. Step 2: Convert to fraction form
    289,613.14/434,492.07 = 204,390.40/x
  3. Step 3: Cross multiply
    289,613.14x = 434,492.07 × 204,390.40
  4. Step 4: Simplify right side
    289,613.14x = 88,806,005,811.67
  5. Step 5: Solve for x
    x = 88,806,005,811.67/289,613.14
  6. Step 6: Final answer
    x = 306,636.66

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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.