Home / 288,948.82-433,509.09-139,145.80

Finding the Fourth Proportional to 288,948.82, 433,509.09 and 139,145.80

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Solution

The fourth proportional to 288,948.82, 433,509.09 and 139,145.80 is: 208,760.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,948.82 : 433,509.09 = 139,145.80 : x
  2. Step 2: Convert to fraction form
    288,948.82/433,509.09 = 139,145.80/x
  3. Step 3: Cross multiply
    288,948.82x = 433,509.09 × 139,145.80
  4. Step 4: Simplify right side
    288,948.82x = 60,320,966,272.05
  5. Step 5: Solve for x
    x = 60,320,966,272.05/288,948.82
  6. Step 6: Final answer
    x = 208,760.04

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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.