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Finding the Fourth Proportional to 275,730.30, 386,547.30 and 275,730.30

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Solution

The fourth proportional to 275,730.30, 386,547.30 and 275,730.30 is: 386,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,730.30 : 386,547.30 = 275,730.30 : x
  2. Step 2: Convert to fraction form
    275,730.30/386,547.30 = 275,730.30/x
  3. Step 3: Cross multiply
    275,730.30x = 386,547.30 × 275,730.30
  4. Step 4: Simplify right side
    275,730.30x = 106,582,802,993.19
  5. Step 5: Solve for x
    x = 106,582,802,993.19/275,730.30
  6. Step 6: Final answer
    x = 386,547.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.