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Finding the Fourth Proportional to 553,266.20, 829,704.90 and 253,890.20

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Solution

The fourth proportional to 553,266.20, 829,704.90 and 253,890.20 is: 380,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,266.20 : 829,704.90 = 253,890.20 : x
  2. Step 2: Convert to fraction form
    553,266.20/829,704.90 = 253,890.20/x
  3. Step 3: Cross multiply
    553,266.20x = 829,704.90 × 253,890.20
  4. Step 4: Simplify right side
    553,266.20x = 210,653,943,001.98
  5. Step 5: Solve for x
    x = 210,653,943,001.98/553,266.20
  6. Step 6: Final answer
    x = 380,746.09

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1.5x scale

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.