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Finding the Fourth Proportional to 315,151.63, 434,945.54 and 175,464.29

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Solution

The fourth proportional to 315,151.63, 434,945.54 and 175,464.29 is: 242,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,151.63 : 434,945.54 = 175,464.29 : x
  2. Step 2: Convert to fraction form
    315,151.63/434,945.54 = 175,464.29/x
  3. Step 3: Cross multiply
    315,151.63x = 434,945.54 × 175,464.29
  4. Step 4: Simplify right side
    315,151.63x = 76,317,411,890.79
  5. Step 5: Solve for x
    x = 76,317,411,890.79/315,151.63
  6. Step 6: Final answer
    x = 242,160.93

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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.