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Finding the Fourth Proportional to 316,015.62, 435,841.74 and 225,342.60

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Solution

The fourth proportional to 316,015.62, 435,841.74 and 225,342.60 is: 310,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,015.62 : 435,841.74 = 225,342.60 : x
  2. Step 2: Convert to fraction form
    316,015.62/435,841.74 = 225,342.60/x
  3. Step 3: Cross multiply
    316,015.62x = 435,841.74 × 225,342.60
  4. Step 4: Simplify right side
    316,015.62x = 98,213,710,880.12
  5. Step 5: Solve for x
    x = 98,213,710,880.12/316,015.62
  6. Step 6: Final answer
    x = 310,787.52

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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.