Home / 371,411.28-557,111.44-90,928.52

Finding the Fourth Proportional to 371,411.28, 557,111.44 and 90,928.52

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Solution

The fourth proportional to 371,411.28, 557,111.44 and 90,928.52 is: 136,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,411.28 : 557,111.44 = 90,928.52 : x
  2. Step 2: Convert to fraction form
    371,411.28/557,111.44 = 90,928.52/x
  3. Step 3: Cross multiply
    371,411.28x = 557,111.44 × 90,928.52
  4. Step 4: Simplify right side
    371,411.28x = 50,657,318,714.27
  5. Step 5: Solve for x
    x = 50,657,318,714.27/371,411.28
  6. Step 6: Final answer
    x = 136,391.44

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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.