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Finding the Fourth Proportional to 310,563.78, 428,575.44 and 174,598.32

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Solution

The fourth proportional to 310,563.78, 428,575.44 and 174,598.32 is: 240,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,563.78 : 428,575.44 = 174,598.32 : x
  2. Step 2: Convert to fraction form
    310,563.78/428,575.44 = 174,598.32/x
  3. Step 3: Cross multiply
    310,563.78x = 428,575.44 × 174,598.32
  4. Step 4: Simplify right side
    310,563.78x = 74,828,551,817.26
  5. Step 5: Solve for x
    x = 74,828,551,817.26/310,563.78
  6. Step 6: Final answer
    x = 240,944.23

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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.