Home / 228,748.02-315,672.26-126,788.80

Finding the Fourth Proportional to 228,748.02, 315,672.26 and 126,788.80

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Solution

The fourth proportional to 228,748.02, 315,672.26 and 126,788.80 is: 174,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,748.02 : 315,672.26 = 126,788.80 : x
  2. Step 2: Convert to fraction form
    228,748.02/315,672.26 = 126,788.80/x
  3. Step 3: Cross multiply
    228,748.02x = 315,672.26 × 126,788.80
  4. Step 4: Simplify right side
    228,748.02x = 40,023,707,038.69
  5. Step 5: Solve for x
    x = 40,023,707,038.69/228,748.02
  6. Step 6: Final answer
    x = 174,968.54

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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.