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Finding the Fourth Proportional to 310,230.90, 434,913.75 and 310,230.90

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Solution

The fourth proportional to 310,230.90, 434,913.75 and 310,230.90 is: 434,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,230.90 : 434,913.75 = 310,230.90 : x
  2. Step 2: Convert to fraction form
    310,230.90/434,913.75 = 310,230.90/x
  3. Step 3: Cross multiply
    310,230.90x = 434,913.75 × 310,230.90
  4. Step 4: Simplify right side
    310,230.90x = 134,923,684,084.88
  5. Step 5: Solve for x
    x = 134,923,684,084.88/310,230.90
  6. Step 6: Final answer
    x = 434,913.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.