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Finding the Fourth Proportional to 304,328.80, 456,493.20 and 209,850.40

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Solution

The fourth proportional to 304,328.80, 456,493.20 and 209,850.40 is: 314,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,328.80 : 456,493.20 = 209,850.40 : x
  2. Step 2: Convert to fraction form
    304,328.80/456,493.20 = 209,850.40/x
  3. Step 3: Cross multiply
    304,328.80x = 456,493.20 × 209,850.40
  4. Step 4: Simplify right side
    304,328.80x = 95,795,280,617.28
  5. Step 5: Solve for x
    x = 95,795,280,617.28/304,328.80
  6. Step 6: Final answer
    x = 314,775.60

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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.