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Finding the Fourth Proportional to 341,506.40, 512,259.60 and 307,680.80

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Solution

The fourth proportional to 341,506.40, 512,259.60 and 307,680.80 is: 461,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,506.40 : 512,259.60 = 307,680.80 : x
  2. Step 2: Convert to fraction form
    341,506.40/512,259.60 = 307,680.80/x
  3. Step 3: Cross multiply
    341,506.40x = 512,259.60 × 307,680.80
  4. Step 4: Simplify right side
    341,506.40x = 157,612,443,535.68
  5. Step 5: Solve for x
    x = 157,612,443,535.68/341,506.40
  6. Step 6: Final answer
    x = 461,521.20

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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.