Home / 287,389.32-396,567.48-176,990.49

Finding the Fourth Proportional to 287,389.32, 396,567.48 and 176,990.49

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Solution

The fourth proportional to 287,389.32, 396,567.48 and 176,990.49 is: 244,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,389.32 : 396,567.48 = 176,990.49 : x
  2. Step 2: Convert to fraction form
    287,389.32/396,567.48 = 176,990.49/x
  3. Step 3: Cross multiply
    287,389.32x = 396,567.48 × 176,990.49
  4. Step 4: Simplify right side
    287,389.32x = 70,188,672,603.27
  5. Step 5: Solve for x
    x = 70,188,672,603.27/287,389.32
  6. Step 6: Final answer
    x = 244,228.54

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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.