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Finding the Fourth Proportional to 238,409.80, 329,006.55 and 130,982.20

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Solution

The fourth proportional to 238,409.80, 329,006.55 and 130,982.20 is: 180,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,409.80 : 329,006.55 = 130,982.20 : x
  2. Step 2: Convert to fraction form
    238,409.80/329,006.55 = 130,982.20/x
  3. Step 3: Cross multiply
    238,409.80x = 329,006.55 × 130,982.20
  4. Step 4: Simplify right side
    238,409.80x = 43,094,001,733.41
  5. Step 5: Solve for x
    x = 43,094,001,733.41/238,409.80
  6. Step 6: Final answer
    x = 180,756.00

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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.