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Finding the Fourth Proportional to 311,999.01, 468,068.52 and 98,779.67

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Solution

The fourth proportional to 311,999.01, 468,068.52 and 98,779.67 is: 148,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,999.01 : 468,068.52 = 98,779.67 : x
  2. Step 2: Convert to fraction form
    311,999.01/468,068.52 = 98,779.67/x
  3. Step 3: Cross multiply
    311,999.01x = 468,068.52 × 98,779.67
  4. Step 4: Simplify right side
    311,999.01x = 46,235,654,090.57
  5. Step 5: Solve for x
    x = 46,235,654,090.57/311,999.01
  6. Step 6: Final answer
    x = 148,191.67

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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.