Home / 328,290.77-453,127.29-213,883.40

Finding the Fourth Proportional to 328,290.77, 453,127.29 and 213,883.40

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Solution

The fourth proportional to 328,290.77, 453,127.29 and 213,883.40 is: 295,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,290.77 : 453,127.29 = 213,883.40 : x
  2. Step 2: Convert to fraction form
    328,290.77/453,127.29 = 213,883.40/x
  3. Step 3: Cross multiply
    328,290.77x = 453,127.29 × 213,883.40
  4. Step 4: Simplify right side
    328,290.77x = 96,916,405,417.99
  5. Step 5: Solve for x
    x = 96,916,405,417.99/328,290.77
  6. Step 6: Final answer
    x = 295,215.14

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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.