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Finding the Fourth Proportional to 328,205.44, 492,312.08 and 91,533.72

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Solution

The fourth proportional to 328,205.44, 492,312.08 and 91,533.72 is: 137,301.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,205.44 : 492,312.08 = 91,533.72 : x
  2. Step 2: Convert to fraction form
    328,205.44/492,312.08 = 91,533.72/x
  3. Step 3: Cross multiply
    328,205.44x = 492,312.08 × 91,533.72
  4. Step 4: Simplify right side
    328,205.44x = 45,063,156,083.34
  5. Step 5: Solve for x
    x = 45,063,156,083.34/328,205.44
  6. Step 6: Final answer
    x = 137,301.67

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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.