Home / 287,464.16-396,747.78-160,180.76

Finding the Fourth Proportional to 287,464.16, 396,747.78 and 160,180.76

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Solution

The fourth proportional to 287,464.16, 396,747.78 and 160,180.76 is: 221,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,464.16 : 396,747.78 = 160,180.76 : x
  2. Step 2: Convert to fraction form
    287,464.16/396,747.78 = 160,180.76/x
  3. Step 3: Cross multiply
    287,464.16x = 396,747.78 × 160,180.76
  4. Step 4: Simplify right side
    287,464.16x = 63,551,360,928.71
  5. Step 5: Solve for x
    x = 63,551,360,928.71/287,464.16
  6. Step 6: Final answer
    x = 221,075.77

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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.