Home / 288,890.19-433,389.56-131,129.73

Finding the Fourth Proportional to 288,890.19, 433,389.56 and 131,129.73

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Solution

The fourth proportional to 288,890.19, 433,389.56 and 131,129.73 is: 196,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,890.19 : 433,389.56 = 131,129.73 : x
  2. Step 2: Convert to fraction form
    288,890.19/433,389.56 = 131,129.73/x
  3. Step 3: Cross multiply
    288,890.19x = 433,389.56 × 131,129.73
  4. Step 4: Simplify right side
    288,890.19x = 56,830,255,331.97
  5. Step 5: Solve for x
    x = 56,830,255,331.97/288,890.19
  6. Step 6: Final answer
    x = 196,719.23

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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.