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Finding the Fourth Proportional to 319,039.59, 440,283.90 and 175,808.88

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Solution

The fourth proportional to 319,039.59, 440,283.90 and 175,808.88 is: 242,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,039.59 : 440,283.90 = 175,808.88 : x
  2. Step 2: Convert to fraction form
    319,039.59/440,283.90 = 175,808.88/x
  3. Step 3: Cross multiply
    319,039.59x = 440,283.90 × 175,808.88
  4. Step 4: Simplify right side
    319,039.59x = 77,405,820,000.32
  5. Step 5: Solve for x
    x = 77,405,820,000.32/319,039.59
  6. Step 6: Final answer
    x = 242,621.36

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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.