Home / 286,723.69-395,688.86-157,672.06

Finding the Fourth Proportional to 286,723.69, 395,688.86 and 157,672.06

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Solution

The fourth proportional to 286,723.69, 395,688.86 and 157,672.06 is: 217,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,723.69 : 395,688.86 = 157,672.06 : x
  2. Step 2: Convert to fraction form
    286,723.69/395,688.86 = 157,672.06/x
  3. Step 3: Cross multiply
    286,723.69x = 395,688.86 × 157,672.06
  4. Step 4: Simplify right side
    286,723.69x = 62,389,075,696.81
  5. Step 5: Solve for x
    x = 62,389,075,696.81/286,723.69
  6. Step 6: Final answer
    x = 217,593.03

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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.