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Finding the Fourth Proportional to 351,461.60, 485,019.32 and 190,316.67

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Solution

The fourth proportional to 351,461.60, 485,019.32 and 190,316.67 is: 262,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,461.60 : 485,019.32 = 190,316.67 : x
  2. Step 2: Convert to fraction form
    351,461.60/485,019.32 = 190,316.67/x
  3. Step 3: Cross multiply
    351,461.60x = 485,019.32 × 190,316.67
  4. Step 4: Simplify right side
    351,461.60x = 92,307,260,703.46
  5. Step 5: Solve for x
    x = 92,307,260,703.46/351,461.60
  6. Step 6: Final answer
    x = 262,638.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.