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Finding the Fourth Proportional to 315,335.60, 473,003.40 and 309,114.80

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Solution

The fourth proportional to 315,335.60, 473,003.40 and 309,114.80 is: 463,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335.60 : 473,003.40 = 309,114.80 : x
  2. Step 2: Convert to fraction form
    315,335.60/473,003.40 = 309,114.80/x
  3. Step 3: Cross multiply
    315,335.60x = 473,003.40 × 309,114.80
  4. Step 4: Simplify right side
    315,335.60x = 146,212,351,390.32
  5. Step 5: Solve for x
    x = 146,212,351,390.32/315,335.60
  6. Step 6: Final answer
    x = 463,672.20

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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.