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Finding the Fourth Proportional to 310,548.08, 428,558.04 and 176,416.88

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Solution

The fourth proportional to 310,548.08, 428,558.04 and 176,416.88 is: 243,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,548.08 : 428,558.04 = 176,416.88 : x
  2. Step 2: Convert to fraction form
    310,548.08/428,558.04 = 176,416.88/x
  3. Step 3: Cross multiply
    310,548.08x = 428,558.04 × 176,416.88
  4. Step 4: Simplify right side
    310,548.08x = 75,604,872,315.72
  5. Step 5: Solve for x
    x = 75,604,872,315.72/310,548.08
  6. Step 6: Final answer
    x = 243,456.25

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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.