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Finding the Fourth Proportional to 207,007.20, 310,510.80 and 180,763.20

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Solution

The fourth proportional to 207,007.20, 310,510.80 and 180,763.20 is: 271,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,007.20 : 310,510.80 = 180,763.20 : x
  2. Step 2: Convert to fraction form
    207,007.20/310,510.80 = 180,763.20/x
  3. Step 3: Cross multiply
    207,007.20x = 310,510.80 × 180,763.20
  4. Step 4: Simplify right side
    207,007.20x = 56,128,925,842.56
  5. Step 5: Solve for x
    x = 56,128,925,842.56/207,007.20
  6. Step 6: Final answer
    x = 271,144.80

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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.