Home / 286,555.90-395,453.33-157,495.63

Finding the Fourth Proportional to 286,555.90, 395,453.33 and 157,495.63

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Solution

The fourth proportional to 286,555.90, 395,453.33 and 157,495.63 is: 217,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,555.90 : 395,453.33 = 157,495.63 : x
  2. Step 2: Convert to fraction form
    286,555.90/395,453.33 = 157,495.63/x
  3. Step 3: Cross multiply
    286,555.90x = 395,453.33 × 157,495.63
  4. Step 4: Simplify right side
    286,555.90x = 62,282,171,343.95
  5. Step 5: Solve for x
    x = 62,282,171,343.95/286,555.90
  6. Step 6: Final answer
    x = 217,347.37

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1.5x scale

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.