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Finding the Fourth Proportional to 304,287.40, 456,431.10 and 198,533.80

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Solution

The fourth proportional to 304,287.40, 456,431.10 and 198,533.80 is: 297,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,287.40 : 456,431.10 = 198,533.80 : x
  2. Step 2: Convert to fraction form
    304,287.40/456,431.10 = 198,533.80/x
  3. Step 3: Cross multiply
    304,287.40x = 456,431.10 × 198,533.80
  4. Step 4: Simplify right side
    304,287.40x = 90,617,000,721.18
  5. Step 5: Solve for x
    x = 90,617,000,721.18/304,287.40
  6. Step 6: Final answer
    x = 297,800.70

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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.