Home / 287,240.22-396,288.90-166,315.50

Finding the Fourth Proportional to 287,240.22, 396,288.90 and 166,315.50

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Solution

The fourth proportional to 287,240.22, 396,288.90 and 166,315.50 is: 229,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,240.22 : 396,288.90 = 166,315.50 : x
  2. Step 2: Convert to fraction form
    287,240.22/396,288.90 = 166,315.50/x
  3. Step 3: Cross multiply
    287,240.22x = 396,288.90 × 166,315.50
  4. Step 4: Simplify right side
    287,240.22x = 65,908,986,547.95
  5. Step 5: Solve for x
    x = 65,908,986,547.95/287,240.22
  6. Step 6: Final answer
    x = 229,455.98

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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.