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Finding the Fourth Proportional to 238,175.21, 328,680.46 and 130,747.07

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Solution

The fourth proportional to 238,175.21, 328,680.46 and 130,747.07 is: 180,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,175.21 : 328,680.46 = 130,747.07 : x
  2. Step 2: Convert to fraction form
    238,175.21/328,680.46 = 130,747.07/x
  3. Step 3: Cross multiply
    238,175.21x = 328,680.46 × 130,747.07
  4. Step 4: Simplify right side
    238,175.21x = 42,974,007,111.25
  5. Step 5: Solve for x
    x = 42,974,007,111.25/238,175.21
  6. Step 6: Final answer
    x = 180,430.23

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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.