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Finding the Fourth Proportional to 315,795.58, 435,798 and 170,601.40

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Solution

The fourth proportional to 315,795.58, 435,798 and 170,601.40 is: 235,429.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,795.58 : 435,798 = 170,601.40 : x
  2. Step 2: Convert to fraction form
    315,795.58/435,798 = 170,601.40/x
  3. Step 3: Cross multiply
    315,795.58x = 435,798 × 170,601.40
  4. Step 4: Simplify right side
    315,795.58x = 74,347,748,917.20
  5. Step 5: Solve for x
    x = 74,347,748,917.20/315,795.58
  6. Step 6: Final answer
    x = 235,429.99

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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.