Home / 288,559.06-432,838.49-78,197.00

Finding the Fourth Proportional to 288,559.06, 432,838.49 and 78,197.00

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Solution

The fourth proportional to 288,559.06, 432,838.49 and 78,197.00 is: 117,295.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,559.06 : 432,838.49 = 78,197.00 : x
  2. Step 2: Convert to fraction form
    288,559.06/432,838.49 = 78,197.00/x
  3. Step 3: Cross multiply
    288,559.06x = 432,838.49 × 78,197.00
  4. Step 4: Simplify right side
    288,559.06x = 33,846,668,847.35
  5. Step 5: Solve for x
    x = 33,846,668,847.35/288,559.06
  6. Step 6: Final answer
    x = 117,295.47

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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.