Home / 208,841.02-288,198.21-113,347.78

Finding the Fourth Proportional to 208,841.02, 288,198.21 and 113,347.78

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Solution

The fourth proportional to 208,841.02, 288,198.21 and 113,347.78 is: 156,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,841.02 : 288,198.21 = 113,347.78 : x
  2. Step 2: Convert to fraction form
    208,841.02/288,198.21 = 113,347.78/x
  3. Step 3: Cross multiply
    208,841.02x = 288,198.21 × 113,347.78
  4. Step 4: Simplify right side
    208,841.02x = 32,666,627,303.47
  5. Step 5: Solve for x
    x = 32,666,627,303.47/208,841.02
  6. Step 6: Final answer
    x = 156,418.64

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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.