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Finding the Fourth Proportional to 305,729.37, 456,535.33 and 249,680.74

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Solution

The fourth proportional to 305,729.37, 456,535.33 and 249,680.74 is: 372,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,729.37 : 456,535.33 = 249,680.74 : x
  2. Step 2: Convert to fraction form
    305,729.37/456,535.33 = 249,680.74/x
  3. Step 3: Cross multiply
    305,729.37x = 456,535.33 × 249,680.74
  4. Step 4: Simplify right side
    305,729.37x = 113,988,080,171.88
  5. Step 5: Solve for x
    x = 113,988,080,171.88/305,729.37
  6. Step 6: Final answer
    x = 372,839.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.