Home / 401,971.56-554,722.28-220,702.06

Finding the Fourth Proportional to 401,971.56, 554,722.28 and 220,702.06

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Solution

The fourth proportional to 401,971.56, 554,722.28 and 220,702.06 is: 304,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,971.56 : 554,722.28 = 220,702.06 : x
  2. Step 2: Convert to fraction form
    401,971.56/554,722.28 = 220,702.06/x
  3. Step 3: Cross multiply
    401,971.56x = 554,722.28 × 220,702.06
  4. Step 4: Simplify right side
    401,971.56x = 122,428,349,923.90
  5. Step 5: Solve for x
    x = 122,428,349,923.90/401,971.56
  6. Step 6: Final answer
    x = 304,569.68

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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.