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Finding the Fourth Proportional to 329,974.16, 455,129.06 and 302,837.67

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Solution

The fourth proportional to 329,974.16, 455,129.06 and 302,837.67 is: 417,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,974.16 : 455,129.06 = 302,837.67 : x
  2. Step 2: Convert to fraction form
    329,974.16/455,129.06 = 302,837.67/x
  3. Step 3: Cross multiply
    329,974.16x = 455,129.06 × 302,837.67
  4. Step 4: Simplify right side
    329,974.16x = 137,830,222,565.50
  5. Step 5: Solve for x
    x = 137,830,222,565.50/329,974.16
  6. Step 6: Final answer
    x = 417,700.05

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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.