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Finding the Fourth Proportional to 301,279.76, 415,763.88 and 167,143.76

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Solution

The fourth proportional to 301,279.76, 415,763.88 and 167,143.76 is: 230,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279.76 : 415,763.88 = 167,143.76 : x
  2. Step 2: Convert to fraction form
    301,279.76/415,763.88 = 167,143.76/x
  3. Step 3: Cross multiply
    301,279.76x = 415,763.88 × 167,143.76
  4. Step 4: Simplify right side
    301,279.76x = 69,492,338,175.39
  5. Step 5: Solve for x
    x = 69,492,338,175.39/301,279.76
  6. Step 6: Final answer
    x = 230,657.17

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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.