Home / 238,298.03-328,850.09-129,401.40

Finding the Fourth Proportional to 238,298.03, 328,850.09 and 129,401.40

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Solution

The fourth proportional to 238,298.03, 328,850.09 and 129,401.40 is: 178,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,298.03 : 328,850.09 = 129,401.40 : x
  2. Step 2: Convert to fraction form
    238,298.03/328,850.09 = 129,401.40/x
  3. Step 3: Cross multiply
    238,298.03x = 328,850.09 × 129,401.40
  4. Step 4: Simplify right side
    238,298.03x = 42,553,662,036.13
  5. Step 5: Solve for x
    x = 42,553,662,036.13/238,298.03
  6. Step 6: Final answer
    x = 178,573.29

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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.