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Finding the Fourth Proportional to 310,071.89, 427,893.76 and 174,106.91

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Solution

The fourth proportional to 310,071.89, 427,893.76 and 174,106.91 is: 240,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,071.89 : 427,893.76 = 174,106.91 : x
  2. Step 2: Convert to fraction form
    310,071.89/427,893.76 = 174,106.91/x
  3. Step 3: Cross multiply
    310,071.89x = 427,893.76 × 174,106.91
  4. Step 4: Simplify right side
    310,071.89x = 74,499,260,361.88
  5. Step 5: Solve for x
    x = 74,499,260,361.88/310,071.89
  6. Step 6: Final answer
    x = 240,264.48

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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.