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Finding the Fourth Proportional to 555,421.50, 832,959.45 and 200,389.02

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Solution

The fourth proportional to 555,421.50, 832,959.45 and 200,389.02 is: 300,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,421.50 : 832,959.45 = 200,389.02 : x
  2. Step 2: Convert to fraction form
    555,421.50/832,959.45 = 200,389.02/x
  3. Step 3: Cross multiply
    555,421.50x = 832,959.45 × 200,389.02
  4. Step 4: Simplify right side
    555,421.50x = 166,915,927,885.24
  5. Step 5: Solve for x
    x = 166,915,927,885.24/555,421.50
  6. Step 6: Final answer
    x = 300,521.19

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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.