Home / 289,111.22-433,417.36-139,145.20

Finding the Fourth Proportional to 289,111.22, 433,417.36 and 139,145.20

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Solution

The fourth proportional to 289,111.22, 433,417.36 and 139,145.20 is: 208,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,111.22 : 433,417.36 = 139,145.20 : x
  2. Step 2: Convert to fraction form
    289,111.22/433,417.36 = 139,145.20/x
  3. Step 3: Cross multiply
    289,111.22x = 433,417.36 × 139,145.20
  4. Step 4: Simplify right side
    289,111.22x = 60,307,945,240.67
  5. Step 5: Solve for x
    x = 60,307,945,240.67/289,111.22
  6. Step 6: Final answer
    x = 208,597.73

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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.