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Finding the Fourth Proportional to 310,391.44, 465,791 and 170,248.40

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Solution

The fourth proportional to 310,391.44, 465,791 and 170,248.40 is: 255,484.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,391.44 : 465,791 = 170,248.40 : x
  2. Step 2: Convert to fraction form
    310,391.44/465,791 = 170,248.40/x
  3. Step 3: Cross multiply
    310,391.44x = 465,791 × 170,248.40
  4. Step 4: Simplify right side
    310,391.44x = 79,300,172,484.40
  5. Step 5: Solve for x
    x = 79,300,172,484.40/310,391.44
  6. Step 6: Final answer
    x = 255,484.41

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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.