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Finding the Fourth Proportional to 238,038.75, 328,499.54 and 130,608.75

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Solution

The fourth proportional to 238,038.75, 328,499.54 and 130,608.75 is: 180,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,038.75 : 328,499.54 = 130,608.75 : x
  2. Step 2: Convert to fraction form
    238,038.75/328,499.54 = 130,608.75/x
  3. Step 3: Cross multiply
    238,038.75x = 328,499.54 × 130,608.75
  4. Step 4: Simplify right side
    238,038.75x = 42,904,914,294.98
  5. Step 5: Solve for x
    x = 42,904,914,294.98/238,038.75
  6. Step 6: Final answer
    x = 180,243.40

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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.