Home / 258,038.93-356,081.61-143,325.01

Finding the Fourth Proportional to 258,038.93, 356,081.61 and 143,325.01

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Solution

The fourth proportional to 258,038.93, 356,081.61 and 143,325.01 is: 197,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,038.93 : 356,081.61 = 143,325.01 : x
  2. Step 2: Convert to fraction form
    258,038.93/356,081.61 = 143,325.01/x
  3. Step 3: Cross multiply
    258,038.93x = 356,081.61 × 143,325.01
  4. Step 4: Simplify right side
    258,038.93x = 51,035,400,314.07
  5. Step 5: Solve for x
    x = 51,035,400,314.07/258,038.93
  6. Step 6: Final answer
    x = 197,781.79

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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.