Home / 338,007.68-509,384.13-304,307.36

Finding the Fourth Proportional to 338,007.68, 509,384.13 and 304,307.36

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Solution

The fourth proportional to 338,007.68, 509,384.13 and 304,307.36 is: 458,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,007.68 : 509,384.13 = 304,307.36 : x
  2. Step 2: Convert to fraction form
    338,007.68/509,384.13 = 304,307.36/x
  3. Step 3: Cross multiply
    338,007.68x = 509,384.13 × 304,307.36
  4. Step 4: Simplify right side
    338,007.68x = 155,009,339,826.20
  5. Step 5: Solve for x
    x = 155,009,339,826.20/338,007.68
  6. Step 6: Final answer
    x = 458,597.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.