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Finding the Fourth Proportional to 614,456.81, 921,485.89 and 235,357.37

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Solution

The fourth proportional to 614,456.81, 921,485.89 and 235,357.37 is: 352,959.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,456.81 : 921,485.89 = 235,357.37 : x
  2. Step 2: Convert to fraction form
    614,456.81/921,485.89 = 235,357.37/x
  3. Step 3: Cross multiply
    614,456.81x = 921,485.89 × 235,357.37
  4. Step 4: Simplify right side
    614,456.81x = 216,878,495,562.51
  5. Step 5: Solve for x
    x = 216,878,495,562.51/614,456.81
  6. Step 6: Final answer
    x = 352,959.71

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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.