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Finding the Fourth Proportional to 310,503.08, 428,539.62 and 174,548.22

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Solution

The fourth proportional to 310,503.08, 428,539.62 and 174,548.22 is: 240,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,503.08 : 428,539.62 = 174,548.22 : x
  2. Step 2: Convert to fraction form
    310,503.08/428,539.62 = 174,548.22/x
  3. Step 3: Cross multiply
    310,503.08x = 428,539.62 × 174,548.22
  4. Step 4: Simplify right side
    310,503.08x = 74,800,827,870.48
  5. Step 5: Solve for x
    x = 74,800,827,870.48/310,503.08
  6. Step 6: Final answer
    x = 240,902.05

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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.