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Finding the Fourth Proportional to 319,043.10, 440,299.06 and 175,803.10

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Solution

The fourth proportional to 319,043.10, 440,299.06 and 175,803.10 is: 242,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,043.10 : 440,299.06 = 175,803.10 : x
  2. Step 2: Convert to fraction form
    319,043.10/440,299.06 = 175,803.10/x
  3. Step 3: Cross multiply
    319,043.10x = 440,299.06 × 175,803.10
  4. Step 4: Simplify right side
    319,043.10x = 77,405,939,675.09
  5. Step 5: Solve for x
    x = 77,405,939,675.09/319,043.10
  6. Step 6: Final answer
    x = 242,619.07

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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.