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Finding the Fourth Proportional to 328,500.10, 492,750.15 and 141,511.60

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Solution

The fourth proportional to 328,500.10, 492,750.15 and 141,511.60 is: 212,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,500.10 : 492,750.15 = 141,511.60 : x
  2. Step 2: Convert to fraction form
    328,500.10/492,750.15 = 141,511.60/x
  3. Step 3: Cross multiply
    328,500.10x = 492,750.15 × 141,511.60
  4. Step 4: Simplify right side
    328,500.10x = 69,729,862,126.74
  5. Step 5: Solve for x
    x = 69,729,862,126.74/328,500.10
  6. Step 6: Final answer
    x = 212,267.40

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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.