Home / 286,006.45-394,688.95-158,681.74

Finding the Fourth Proportional to 286,006.45, 394,688.95 and 158,681.74

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Solution

The fourth proportional to 286,006.45, 394,688.95 and 158,681.74 is: 218,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,006.45 : 394,688.95 = 158,681.74 : x
  2. Step 2: Convert to fraction form
    286,006.45/394,688.95 = 158,681.74/x
  3. Step 3: Cross multiply
    286,006.45x = 394,688.95 × 158,681.74
  4. Step 4: Simplify right side
    286,006.45x = 62,629,930,728.20
  5. Step 5: Solve for x
    x = 62,629,930,728.20/286,006.45
  6. Step 6: Final answer
    x = 218,980.83

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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.