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Finding the Fourth Proportional to 310,333.34, 428,260.29 and 176,197.34

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Solution

The fourth proportional to 310,333.34, 428,260.29 and 176,197.34 is: 243,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,333.34 : 428,260.29 = 176,197.34 : x
  2. Step 2: Convert to fraction form
    310,333.34/428,260.29 = 176,197.34/x
  3. Step 3: Cross multiply
    310,333.34x = 428,260.29 × 176,197.34
  4. Step 4: Simplify right side
    310,333.34x = 75,458,323,925.63
  5. Step 5: Solve for x
    x = 75,458,323,925.63/310,333.34
  6. Step 6: Final answer
    x = 243,152.49

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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.