Home / 288,156.90-432,201.33-77,811.24

Finding the Fourth Proportional to 288,156.90, 432,201.33 and 77,811.24

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Solution

The fourth proportional to 288,156.90, 432,201.33 and 77,811.24 is: 116,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,156.90 : 432,201.33 = 77,811.24 : x
  2. Step 2: Convert to fraction form
    288,156.90/432,201.33 = 77,811.24/x
  3. Step 3: Cross multiply
    288,156.90x = 432,201.33 × 77,811.24
  4. Step 4: Simplify right side
    288,156.90x = 33,630,121,416.95
  5. Step 5: Solve for x
    x = 33,630,121,416.95/288,156.90
  6. Step 6: Final answer
    x = 116,707.67

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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.