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Finding the Fourth Proportional to 403,705.30, 604,828.95 and 235,087.60

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Solution

The fourth proportional to 403,705.30, 604,828.95 and 235,087.60 is: 352,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705.30 : 604,828.95 = 235,087.60 : x
  2. Step 2: Convert to fraction form
    403,705.30/604,828.95 = 235,087.60/x
  3. Step 3: Cross multiply
    403,705.30x = 604,828.95 × 235,087.60
  4. Step 4: Simplify right side
    403,705.30x = 142,187,786,266.02
  5. Step 5: Solve for x
    x = 142,187,786,266.02/403,705.30
  6. Step 6: Final answer
    x = 352,206.89

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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.