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Finding the Fourth Proportional to 411,649.60, 568,102.80 and 230,382.40

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Solution

The fourth proportional to 411,649.60, 568,102.80 and 230,382.40 is: 317,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,649.60 : 568,102.80 = 230,382.40 : x
  2. Step 2: Convert to fraction form
    411,649.60/568,102.80 = 230,382.40/x
  3. Step 3: Cross multiply
    411,649.60x = 568,102.80 × 230,382.40
  4. Step 4: Simplify right side
    411,649.60x = 130,880,886,510.72
  5. Step 5: Solve for x
    x = 130,880,886,510.72/411,649.60
  6. Step 6: Final answer
    x = 317,942.46

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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.