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Finding the Fourth Proportional to 310,955.49, 429,140.37 and 175,002.53

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Solution

The fourth proportional to 310,955.49, 429,140.37 and 175,002.53 is: 241,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,955.49 : 429,140.37 = 175,002.53 : x
  2. Step 2: Convert to fraction form
    310,955.49/429,140.37 = 175,002.53/x
  3. Step 3: Cross multiply
    310,955.49x = 429,140.37 × 175,002.53
  4. Step 4: Simplify right side
    310,955.49x = 75,100,648,329.43
  5. Step 5: Solve for x
    x = 75,100,648,329.43/310,955.49
  6. Step 6: Final answer
    x = 241,515.75

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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.