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Finding the Fourth Proportional to 437,111.20, 655,666.80 and 259,526.80

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Solution

The fourth proportional to 437,111.20, 655,666.80 and 259,526.80 is: 389,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,111.20 : 655,666.80 = 259,526.80 : x
  2. Step 2: Convert to fraction form
    437,111.20/655,666.80 = 259,526.80/x
  3. Step 3: Cross multiply
    437,111.20x = 655,666.80 × 259,526.80
  4. Step 4: Simplify right side
    437,111.20x = 170,163,106,470.24
  5. Step 5: Solve for x
    x = 170,163,106,470.24/437,111.20
  6. Step 6: Final answer
    x = 389,290.20

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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.