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Finding the Fourth Proportional to 238,331.67, 328,900.41 and 130,904.21

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Solution

The fourth proportional to 238,331.67, 328,900.41 and 130,904.21 is: 180,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,331.67 : 328,900.41 = 130,904.21 : x
  2. Step 2: Convert to fraction form
    238,331.67/328,900.41 = 130,904.21/x
  3. Step 3: Cross multiply
    238,331.67x = 328,900.41 × 130,904.21
  4. Step 4: Simplify right side
    238,331.67x = 43,054,446,695.22
  5. Step 5: Solve for x
    x = 43,054,446,695.22/238,331.67
  6. Step 6: Final answer
    x = 180,649.29

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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.