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Finding the Fourth Proportional to 310,725.60, 466,088.40 and 123,640.80

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Solution

The fourth proportional to 310,725.60, 466,088.40 and 123,640.80 is: 185,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,725.60 : 466,088.40 = 123,640.80 : x
  2. Step 2: Convert to fraction form
    310,725.60/466,088.40 = 123,640.80/x
  3. Step 3: Cross multiply
    310,725.60x = 466,088.40 × 123,640.80
  4. Step 4: Simplify right side
    310,725.60x = 57,627,542,646.72
  5. Step 5: Solve for x
    x = 57,627,542,646.72/310,725.60
  6. Step 6: Final answer
    x = 185,461.20

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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.