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Finding the Fourth Proportional to 310,525.60, 428,477.28 and 174,534.29

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Solution

The fourth proportional to 310,525.60, 428,477.28 and 174,534.29 is: 240,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,525.60 : 428,477.28 = 174,534.29 : x
  2. Step 2: Convert to fraction form
    310,525.60/428,477.28 = 174,534.29/x
  3. Step 3: Cross multiply
    310,525.60x = 428,477.28 × 174,534.29
  4. Step 4: Simplify right side
    310,525.60x = 74,783,977,845.93
  5. Step 5: Solve for x
    x = 74,783,977,845.93/310,525.60
  6. Step 6: Final answer
    x = 240,830.31

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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.