Home / 208,324.12-287,488.02-112,830.52

Finding the Fourth Proportional to 208,324.12, 287,488.02 and 112,830.52

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Solution

The fourth proportional to 208,324.12, 287,488.02 and 112,830.52 is: 155,706.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,324.12 : 287,488.02 = 112,830.52 : x
  2. Step 2: Convert to fraction form
    208,324.12/287,488.02 = 112,830.52/x
  3. Step 3: Cross multiply
    208,324.12x = 287,488.02 × 112,830.52
  4. Step 4: Simplify right side
    208,324.12x = 32,437,422,790.37
  5. Step 5: Solve for x
    x = 32,437,422,790.37/208,324.12
  6. Step 6: Final answer
    x = 155,706.52

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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.