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Finding the Fourth Proportional to 348,000.80, 522,073.20 and 198,312.80

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Solution

The fourth proportional to 348,000.80, 522,073.20 and 198,312.80 is: 297,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,000.80 : 522,073.20 = 198,312.80 : x
  2. Step 2: Convert to fraction form
    348,000.80/522,073.20 = 198,312.80/x
  3. Step 3: Cross multiply
    348,000.80x = 522,073.20 × 198,312.80
  4. Step 4: Simplify right side
    348,000.80x = 103,533,798,096.96
  5. Step 5: Solve for x
    x = 103,533,798,096.96/348,000.80
  6. Step 6: Final answer
    x = 297,510.23

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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.