Home / 205,254.60-307,590.30-142,852.20

Finding the Fourth Proportional to 205,254.60, 307,590.30 and 142,852.20

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Solution

The fourth proportional to 205,254.60, 307,590.30 and 142,852.20 is: 214,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,254.60 : 307,590.30 = 142,852.20 : x
  2. Step 2: Convert to fraction form
    205,254.60/307,590.30 = 142,852.20/x
  3. Step 3: Cross multiply
    205,254.60x = 307,590.30 × 142,852.20
  4. Step 4: Simplify right side
    205,254.60x = 43,939,951,053.66
  5. Step 5: Solve for x
    x = 43,939,951,053.66/205,254.60
  6. Step 6: Final answer
    x = 214,075.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.