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Finding the Fourth Proportional to 401,963.06, 554,710.53 and 220,693.56

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Solution

The fourth proportional to 401,963.06, 554,710.53 and 220,693.56 is: 304,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,963.06 : 554,710.53 = 220,693.56 : x
  2. Step 2: Convert to fraction form
    401,963.06/554,710.53 = 220,693.56/x
  3. Step 3: Cross multiply
    401,963.06x = 554,710.53 × 220,693.56
  4. Step 4: Simplify right side
    401,963.06x = 122,421,041,635.19
  5. Step 5: Solve for x
    x = 122,421,041,635.19/401,963.06
  6. Step 6: Final answer
    x = 304,557.94

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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.