Home / 243,012.20-364,518.30-228,237.80

Finding the Fourth Proportional to 243,012.20, 364,518.30 and 228,237.80

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Solution

The fourth proportional to 243,012.20, 364,518.30 and 228,237.80 is: 342,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,012.20 : 364,518.30 = 228,237.80 : x
  2. Step 2: Convert to fraction form
    243,012.20/364,518.30 = 228,237.80/x
  3. Step 3: Cross multiply
    243,012.20x = 364,518.30 × 228,237.80
  4. Step 4: Simplify right side
    243,012.20x = 83,196,854,851.74
  5. Step 5: Solve for x
    x = 83,196,854,851.74/243,012.20
  6. Step 6: Final answer
    x = 342,356.70

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1.5x scale

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.