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Finding the Fourth Proportional to 328,064.07, 492,096.12 and 78,746.07

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Solution

The fourth proportional to 328,064.07, 492,096.12 and 78,746.07 is: 118,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,064.07 : 492,096.12 = 78,746.07 : x
  2. Step 2: Convert to fraction form
    328,064.07/492,096.12 = 78,746.07/x
  3. Step 3: Cross multiply
    328,064.07x = 492,096.12 × 78,746.07
  4. Step 4: Simplify right side
    328,064.07x = 38,750,635,512.25
  5. Step 5: Solve for x
    x = 38,750,635,512.25/328,064.07
  6. Step 6: Final answer
    x = 118,119.11

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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.