Home / 286,661.35-395,597.40-157,605.28

Finding the Fourth Proportional to 286,661.35, 395,597.40 and 157,605.28

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Solution

The fourth proportional to 286,661.35, 395,597.40 and 157,605.28 is: 217,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,661.35 : 395,597.40 = 157,605.28 : x
  2. Step 2: Convert to fraction form
    286,661.35/395,597.40 = 157,605.28/x
  3. Step 3: Cross multiply
    286,661.35x = 395,597.40 × 157,605.28
  4. Step 4: Simplify right side
    286,661.35x = 62,348,238,994.27
  5. Step 5: Solve for x
    x = 62,348,238,994.27/286,661.35
  6. Step 6: Final answer
    x = 217,497.89

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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.