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Finding the Fourth Proportional to 200,718.40, 301,077.60 and 153,479.20

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Solution

The fourth proportional to 200,718.40, 301,077.60 and 153,479.20 is: 230,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,718.40 : 301,077.60 = 153,479.20 : x
  2. Step 2: Convert to fraction form
    200,718.40/301,077.60 = 153,479.20/x
  3. Step 3: Cross multiply
    200,718.40x = 301,077.60 × 153,479.20
  4. Step 4: Simplify right side
    200,718.40x = 46,209,149,185.92
  5. Step 5: Solve for x
    x = 46,209,149,185.92/200,718.40
  6. Step 6: Final answer
    x = 230,218.80

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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.