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Finding the Fourth Proportional to 315,345.20, 473,017.80 and 173,627.60

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Solution

The fourth proportional to 315,345.20, 473,017.80 and 173,627.60 is: 260,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,345.20 : 473,017.80 = 173,627.60 : x
  2. Step 2: Convert to fraction form
    315,345.20/473,017.80 = 173,627.60/x
  3. Step 3: Cross multiply
    315,345.20x = 473,017.80 × 173,627.60
  4. Step 4: Simplify right side
    315,345.20x = 82,128,945,371.28
  5. Step 5: Solve for x
    x = 82,128,945,371.28/315,345.20
  6. Step 6: Final answer
    x = 260,441.40

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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.