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Finding the Fourth Proportional to 401,587.95, 554,195.65 and 220,300.23

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Solution

The fourth proportional to 401,587.95, 554,195.65 and 220,300.23 is: 304,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,587.95 : 554,195.65 = 220,300.23 : x
  2. Step 2: Convert to fraction form
    401,587.95/554,195.65 = 220,300.23/x
  3. Step 3: Cross multiply
    401,587.95x = 554,195.65 × 220,300.23
  4. Step 4: Simplify right side
    401,587.95x = 122,089,429,160.00
  5. Step 5: Solve for x
    x = 122,089,429,160.00/401,587.95
  6. Step 6: Final answer
    x = 304,016.66

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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.