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Finding the Fourth Proportional to 328,063.34, 492,095.02 and 78,745.34

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Solution

The fourth proportional to 328,063.34, 492,095.02 and 78,745.34 is: 118,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,063.34 : 492,095.02 = 78,745.34 : x
  2. Step 2: Convert to fraction form
    328,063.34/492,095.02 = 78,745.34/x
  3. Step 3: Cross multiply
    328,063.34x = 492,095.02 × 78,745.34
  4. Step 4: Simplify right side
    328,063.34x = 38,750,189,662.21
  5. Step 5: Solve for x
    x = 38,750,189,662.21/328,063.34
  6. Step 6: Final answer
    x = 118,118.01

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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.