Home / 258,501.66-356,586.69-155,109.11

Finding the Fourth Proportional to 258,501.66, 356,586.69 and 155,109.11

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Solution

The fourth proportional to 258,501.66, 356,586.69 and 155,109.11 is: 213,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,501.66 : 356,586.69 = 155,109.11 : x
  2. Step 2: Convert to fraction form
    258,501.66/356,586.69 = 155,109.11/x
  3. Step 3: Cross multiply
    258,501.66x = 356,586.69 × 155,109.11
  4. Step 4: Simplify right side
    258,501.66x = 55,309,844,123.75
  5. Step 5: Solve for x
    x = 55,309,844,123.75/258,501.66
  6. Step 6: Final answer
    x = 213,963.21

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1.5x scale

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.