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Finding the Fourth Proportional to 403,758.35, 604,890.30 and 235,359.35

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Solution

The fourth proportional to 403,758.35, 604,890.30 and 235,359.35 is: 352,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,758.35 : 604,890.30 = 235,359.35 : x
  2. Step 2: Convert to fraction form
    403,758.35/604,890.30 = 235,359.35/x
  3. Step 3: Cross multiply
    403,758.35x = 604,890.30 × 235,359.35
  4. Step 4: Simplify right side
    403,758.35x = 142,366,587,829.31
  5. Step 5: Solve for x
    x = 142,366,587,829.31/403,758.35
  6. Step 6: Final answer
    x = 352,603.45

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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.