Home / 309,283.04-426,821.10-295,111.28

Finding the Fourth Proportional to 309,283.04, 426,821.10 and 295,111.28

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Solution

The fourth proportional to 309,283.04, 426,821.10 and 295,111.28 is: 407,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,283.04 : 426,821.10 = 295,111.28 : x
  2. Step 2: Convert to fraction form
    309,283.04/426,821.10 = 295,111.28/x
  3. Step 3: Cross multiply
    309,283.04x = 426,821.10 × 295,111.28
  4. Step 4: Simplify right side
    309,283.04x = 125,959,721,112.39
  5. Step 5: Solve for x
    x = 125,959,721,112.39/309,283.04
  6. Step 6: Final answer
    x = 407,263.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.