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Finding the Fourth Proportional to 640,030.34, 960,424.26 and 235,506.61

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Solution

The fourth proportional to 640,030.34, 960,424.26 and 235,506.61 is: 353,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,030.34 : 960,424.26 = 235,506.61 : x
  2. Step 2: Convert to fraction form
    640,030.34/960,424.26 = 235,506.61/x
  3. Step 3: Cross multiply
    640,030.34x = 960,424.26 × 235,506.61
  4. Step 4: Simplify right side
    640,030.34x = 226,186,261,634.36
  5. Step 5: Solve for x
    x = 226,186,261,634.36/640,030.34
  6. Step 6: Final answer
    x = 353,399.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.