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Finding the Fourth Proportional to 315,645.60, 473,468.40 and 191,229.60

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Solution

The fourth proportional to 315,645.60, 473,468.40 and 191,229.60 is: 286,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,645.60 : 473,468.40 = 191,229.60 : x
  2. Step 2: Convert to fraction form
    315,645.60/473,468.40 = 191,229.60/x
  3. Step 3: Cross multiply
    315,645.60x = 473,468.40 × 191,229.60
  4. Step 4: Simplify right side
    315,645.60x = 90,541,172,744.64
  5. Step 5: Solve for x
    x = 90,541,172,744.64/315,645.60
  6. Step 6: Final answer
    x = 286,844.40

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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.