Home / 282,435.26-389,763.36-155,113.52

Finding the Fourth Proportional to 282,435.26, 389,763.36 and 155,113.52

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Solution

The fourth proportional to 282,435.26, 389,763.36 and 155,113.52 is: 214,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,435.26 : 389,763.36 = 155,113.52 : x
  2. Step 2: Convert to fraction form
    282,435.26/389,763.36 = 155,113.52/x
  3. Step 3: Cross multiply
    282,435.26x = 389,763.36 × 155,113.52
  4. Step 4: Simplify right side
    282,435.26x = 60,457,564,787.81
  5. Step 5: Solve for x
    x = 60,457,564,787.81/282,435.26
  6. Step 6: Final answer
    x = 214,058.14

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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.