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Finding the Fourth Proportional to 358,530.30, 537,795.45 and 311,874.30

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Solution

The fourth proportional to 358,530.30, 537,795.45 and 311,874.30 is: 467,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,530.30 : 537,795.45 = 311,874.30 : x
  2. Step 2: Convert to fraction form
    358,530.30/537,795.45 = 311,874.30/x
  3. Step 3: Cross multiply
    358,530.30x = 537,795.45 × 311,874.30
  4. Step 4: Simplify right side
    358,530.30x = 167,724,579,511.94
  5. Step 5: Solve for x
    x = 167,724,579,511.94/358,530.30
  6. Step 6: Final answer
    x = 467,811.45

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Similar ratio
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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.