Home / 423,038.90-634,137.87-212,032.82

Finding the Fourth Proportional to 423,038.90, 634,137.87 and 212,032.82

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Solution

The fourth proportional to 423,038.90, 634,137.87 and 212,032.82 is: 317,838.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,038.90 : 634,137.87 = 212,032.82 : x
  2. Step 2: Convert to fraction form
    423,038.90/634,137.87 = 212,032.82/x
  3. Step 3: Cross multiply
    423,038.90x = 634,137.87 × 212,032.82
  4. Step 4: Simplify right side
    423,038.90x = 134,458,040,844.89
  5. Step 5: Solve for x
    x = 134,458,040,844.89/423,038.90
  6. Step 6: Final answer
    x = 317,838.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.