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Finding the Fourth Proportional to 402,033, 554,801.70 and 220,743.35

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Solution

The fourth proportional to 402,033, 554,801.70 and 220,743.35 is: 304,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,033 : 554,801.70 = 220,743.35 : x
  2. Step 2: Convert to fraction form
    402,033/554,801.70 = 220,743.35/x
  3. Step 3: Cross multiply
    402,033x = 554,801.70 × 220,743.35
  4. Step 4: Simplify right side
    402,033x = 122,468,783,069.69
  5. Step 5: Solve for x
    x = 122,468,783,069.69/402,033
  6. Step 6: Final answer
    x = 304,623.71

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1.5x scale

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.