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Finding the Fourth Proportional to 230,215.17, 317,745.95 and 154,719.93

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Solution

The fourth proportional to 230,215.17, 317,745.95 and 154,719.93 is: 213,546.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,215.17 : 317,745.95 = 154,719.93 : x
  2. Step 2: Convert to fraction form
    230,215.17/317,745.95 = 154,719.93/x
  3. Step 3: Cross multiply
    230,215.17x = 317,745.95 × 154,719.93
  4. Step 4: Simplify right side
    230,215.17x = 49,161,630,368.18
  5. Step 5: Solve for x
    x = 49,161,630,368.18/230,215.17
  6. Step 6: Final answer
    x = 213,546.44

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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.