Home / 427,155.73-641,730.20-249,787.60

Finding the Fourth Proportional to 427,155.73, 641,730.20 and 249,787.60

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Solution

The fourth proportional to 427,155.73, 641,730.20 and 249,787.60 is: 375,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,155.73 : 641,730.20 = 249,787.60 : x
  2. Step 2: Convert to fraction form
    427,155.73/641,730.20 = 249,787.60/x
  3. Step 3: Cross multiply
    427,155.73x = 641,730.20 × 249,787.60
  4. Step 4: Simplify right side
    427,155.73x = 160,296,243,652.26
  5. Step 5: Solve for x
    x = 160,296,243,652.26/427,155.73
  6. Step 6: Final answer
    x = 375,264.18

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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.