Home / 288,004.20-432,006.30-263,509.80

Finding the Fourth Proportional to 288,004.20, 432,006.30 and 263,509.80

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Solution

The fourth proportional to 288,004.20, 432,006.30 and 263,509.80 is: 395,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,004.20 : 432,006.30 = 263,509.80 : x
  2. Step 2: Convert to fraction form
    288,004.20/432,006.30 = 263,509.80/x
  3. Step 3: Cross multiply
    288,004.20x = 432,006.30 × 263,509.80
  4. Step 4: Simplify right side
    288,004.20x = 113,837,893,711.74
  5. Step 5: Solve for x
    x = 113,837,893,711.74/288,004.20
  6. Step 6: Final answer
    x = 395,264.70

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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.