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Finding the Fourth Proportional to 350,127.60, 523,981.80 and 209,986.80

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Solution

The fourth proportional to 350,127.60, 523,981.80 and 209,986.80 is: 314,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,127.60 : 523,981.80 = 209,986.80 : x
  2. Step 2: Convert to fraction form
    350,127.60/523,981.80 = 209,986.80/x
  3. Step 3: Cross multiply
    350,127.60x = 523,981.80 × 209,986.80
  4. Step 4: Simplify right side
    350,127.60x = 110,029,261,440.24
  5. Step 5: Solve for x
    x = 110,029,261,440.24/350,127.60
  6. Step 6: Final answer
    x = 314,254.75

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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.