Home / 209,255.04-288,835.20-142,225.92

Finding the Fourth Proportional to 209,255.04, 288,835.20 and 142,225.92

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Solution

The fourth proportional to 209,255.04, 288,835.20 and 142,225.92 is: 196,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,255.04 : 288,835.20 = 142,225.92 : x
  2. Step 2: Convert to fraction form
    209,255.04/288,835.20 = 142,225.92/x
  3. Step 3: Cross multiply
    209,255.04x = 288,835.20 × 142,225.92
  4. Step 4: Simplify right side
    209,255.04x = 41,079,852,048.38
  5. Step 5: Solve for x
    x = 41,079,852,048.38/209,255.04
  6. Step 6: Final answer
    x = 196,314.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.