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Finding the Fourth Proportional to 370,171.42, 555,478.32 and 340,056.42

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Solution

The fourth proportional to 370,171.42, 555,478.32 and 340,056.42 is: 510,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,171.42 : 555,478.32 = 340,056.42 : x
  2. Step 2: Convert to fraction form
    370,171.42/555,478.32 = 340,056.42/x
  3. Step 3: Cross multiply
    370,171.42x = 555,478.32 × 340,056.42
  4. Step 4: Simplify right side
    370,171.42x = 188,893,968,886.81
  5. Step 5: Solve for x
    x = 188,893,968,886.81/370,171.42
  6. Step 6: Final answer
    x = 510,287.83

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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.