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Finding the Fourth Proportional to 480,161.88, 662,636.76 and 265,315.86

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Solution

The fourth proportional to 480,161.88, 662,636.76 and 265,315.86 is: 366,143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,161.88 : 662,636.76 = 265,315.86 : x
  2. Step 2: Convert to fraction form
    480,161.88/662,636.76 = 265,315.86/x
  3. Step 3: Cross multiply
    480,161.88x = 662,636.76 × 265,315.86
  4. Step 4: Simplify right side
    480,161.88x = 175,808,041,847.01
  5. Step 5: Solve for x
    x = 175,808,041,847.01/480,161.88
  6. Step 6: Final answer
    x = 366,143.27

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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.