Home / 287,372.79-396,574.43-160,048.35

Finding the Fourth Proportional to 287,372.79, 396,574.43 and 160,048.35

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Solution

The fourth proportional to 287,372.79, 396,574.43 and 160,048.35 is: 220,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,372.79 : 396,574.43 = 160,048.35 : x
  2. Step 2: Convert to fraction form
    287,372.79/396,574.43 = 160,048.35/x
  3. Step 3: Cross multiply
    287,372.79x = 396,574.43 × 160,048.35
  4. Step 4: Simplify right side
    287,372.79x = 63,471,082,373.45
  5. Step 5: Solve for x
    x = 63,471,082,373.45/287,372.79
  6. Step 6: Final answer
    x = 220,866.71

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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.