Home / 424,654.25-637,079.79-144,171.50

Finding the Fourth Proportional to 424,654.25, 637,079.79 and 144,171.50

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Solution

The fourth proportional to 424,654.25, 637,079.79 and 144,171.50 is: 216,290.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,654.25 : 637,079.79 = 144,171.50 : x
  2. Step 2: Convert to fraction form
    424,654.25/637,079.79 = 144,171.50/x
  3. Step 3: Cross multiply
    424,654.25x = 637,079.79 × 144,171.50
  4. Step 4: Simplify right side
    424,654.25x = 91,848,748,943.99
  5. Step 5: Solve for x
    x = 91,848,748,943.99/424,654.25
  6. Step 6: Final answer
    x = 216,290.66

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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.