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Finding the Fourth Proportional to 282,000.60, 423,000.90 and 198,019.80

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Solution

The fourth proportional to 282,000.60, 423,000.90 and 198,019.80 is: 297,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,000.60 : 423,000.90 = 198,019.80 : x
  2. Step 2: Convert to fraction form
    282,000.60/423,000.90 = 198,019.80/x
  3. Step 3: Cross multiply
    282,000.60x = 423,000.90 × 198,019.80
  4. Step 4: Simplify right side
    282,000.60x = 83,762,553,617.82
  5. Step 5: Solve for x
    x = 83,762,553,617.82/282,000.60
  6. Step 6: Final answer
    x = 297,029.70

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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.