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Finding the Fourth Proportional to 522,170.50, 783,330.50 and 198,077.76

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Solution

The fourth proportional to 522,170.50, 783,330.50 and 198,077.76 is: 297,145.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,170.50 : 783,330.50 = 198,077.76 : x
  2. Step 2: Convert to fraction form
    522,170.50/783,330.50 = 198,077.76/x
  3. Step 3: Cross multiply
    522,170.50x = 783,330.50 × 198,077.76
  4. Step 4: Simplify right side
    522,170.50x = 155,160,350,779.68
  5. Step 5: Solve for x
    x = 155,160,350,779.68/522,170.50
  6. Step 6: Final answer
    x = 297,145.00

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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.