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Finding the Fourth Proportional to 310,999.90, 429,201.57 and 175,046.87

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Solution

The fourth proportional to 310,999.90, 429,201.57 and 175,046.87 is: 241,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,999.90 : 429,201.57 = 175,046.87 : x
  2. Step 2: Convert to fraction form
    310,999.90/429,201.57 = 175,046.87/x
  3. Step 3: Cross multiply
    310,999.90x = 429,201.57 × 175,046.87
  4. Step 4: Simplify right side
    310,999.90x = 75,130,388,406.34
  5. Step 5: Solve for x
    x = 75,130,388,406.34/310,999.90
  6. Step 6: Final answer
    x = 241,576.89

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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.