Home / 286,254.22-395,012.55-158,929.78

Finding the Fourth Proportional to 286,254.22, 395,012.55 and 158,929.78

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Solution

The fourth proportional to 286,254.22, 395,012.55 and 158,929.78 is: 219,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,254.22 : 395,012.55 = 158,929.78 : x
  2. Step 2: Convert to fraction form
    286,254.22/395,012.55 = 158,929.78/x
  3. Step 3: Cross multiply
    286,254.22x = 395,012.55 × 158,929.78
  4. Step 4: Simplify right side
    286,254.22x = 62,779,257,668.74
  5. Step 5: Solve for x
    x = 62,779,257,668.74/286,254.22
  6. Step 6: Final answer
    x = 219,312.95

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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.