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Finding the Fourth Proportional to 319,117.60, 478,676.40 and 94,512.70

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Solution

The fourth proportional to 319,117.60, 478,676.40 and 94,512.70 is: 141,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,117.60 : 478,676.40 = 94,512.70 : x
  2. Step 2: Convert to fraction form
    319,117.60/478,676.40 = 94,512.70/x
  3. Step 3: Cross multiply
    319,117.60x = 478,676.40 × 94,512.70
  4. Step 4: Simplify right side
    319,117.60x = 45,240,998,990.28
  5. Step 5: Solve for x
    x = 45,240,998,990.28/319,117.60
  6. Step 6: Final answer
    x = 141,769.05

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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.