Home / 288,986.20-433,479.30-239,997.40

Finding the Fourth Proportional to 288,986.20, 433,479.30 and 239,997.40

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Solution

The fourth proportional to 288,986.20, 433,479.30 and 239,997.40 is: 359,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,986.20 : 433,479.30 = 239,997.40 : x
  2. Step 2: Convert to fraction form
    288,986.20/433,479.30 = 239,997.40/x
  3. Step 3: Cross multiply
    288,986.20x = 433,479.30 × 239,997.40
  4. Step 4: Simplify right side
    288,986.20x = 104,033,904,953.82
  5. Step 5: Solve for x
    x = 104,033,904,953.82/288,986.20
  6. Step 6: Final answer
    x = 359,996.10

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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.