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Finding the Fourth Proportional to 523,885.80, 785,943.90 and 168,839.40

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Solution

The fourth proportional to 523,885.80, 785,943.90 and 168,839.40 is: 253,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,885.80 : 785,943.90 = 168,839.40 : x
  2. Step 2: Convert to fraction form
    523,885.80/785,943.90 = 168,839.40/x
  3. Step 3: Cross multiply
    523,885.80x = 785,943.90 × 168,839.40
  4. Step 4: Simplify right side
    523,885.80x = 132,698,296,509.66
  5. Step 5: Solve for x
    x = 132,698,296,509.66/523,885.80
  6. Step 6: Final answer
    x = 253,296.23

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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.