Home / 281,943.51-422,977.55-139,866.07

Finding the Fourth Proportional to 281,943.51, 422,977.55 and 139,866.07

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Solution

The fourth proportional to 281,943.51, 422,977.55 and 139,866.07 is: 209,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,943.51 : 422,977.55 = 139,866.07 : x
  2. Step 2: Convert to fraction form
    281,943.51/422,977.55 = 139,866.07/x
  3. Step 3: Cross multiply
    281,943.51x = 422,977.55 × 139,866.07
  4. Step 4: Simplify right side
    281,943.51x = 59,160,205,463.41
  5. Step 5: Solve for x
    x = 59,160,205,463.41/281,943.51
  6. Step 6: Final answer
    x = 209,830.00

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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.