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Finding the Fourth Proportional to 310,244.98, 428,091.45 and 174,252.89

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Solution

The fourth proportional to 310,244.98, 428,091.45 and 174,252.89 is: 240,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,244.98 : 428,091.45 = 174,252.89 : x
  2. Step 2: Convert to fraction form
    310,244.98/428,091.45 = 174,252.89/x
  3. Step 3: Cross multiply
    310,244.98x = 428,091.45 × 174,252.89
  4. Step 4: Simplify right side
    310,244.98x = 74,596,172,346.79
  5. Step 5: Solve for x
    x = 74,596,172,346.79/310,244.98
  6. Step 6: Final answer
    x = 240,442.80

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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.