Home / 238,738.79-358,131.58-86,977.13

Finding the Fourth Proportional to 238,738.79, 358,131.58 and 86,977.13

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Solution

The fourth proportional to 238,738.79, 358,131.58 and 86,977.13 is: 130,474.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,738.79 : 358,131.58 = 86,977.13 : x
  2. Step 2: Convert to fraction form
    238,738.79/358,131.58 = 86,977.13/x
  3. Step 3: Cross multiply
    238,738.79x = 358,131.58 × 86,977.13
  4. Step 4: Simplify right side
    238,738.79x = 31,149,254,982.66
  5. Step 5: Solve for x
    x = 31,149,254,982.66/238,738.79
  6. Step 6: Final answer
    x = 130,474.21

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1.5x scale

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.