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Finding the Fourth Proportional to 319,005.28, 440,246.88 and 175,765.28

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Solution

The fourth proportional to 319,005.28, 440,246.88 and 175,765.28 is: 242,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,005.28 : 440,246.88 = 175,765.28 : x
  2. Step 2: Convert to fraction form
    319,005.28/440,246.88 = 175,765.28/x
  3. Step 3: Cross multiply
    319,005.28x = 440,246.88 × 175,765.28
  4. Step 4: Simplify right side
    319,005.28x = 77,380,117,232.94
  5. Step 5: Solve for x
    x = 77,380,117,232.94/319,005.28
  6. Step 6: Final answer
    x = 242,566.89

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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.