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Finding the Fourth Proportional to 309,675.60, 464,513.40 and 169,707.60

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Solution

The fourth proportional to 309,675.60, 464,513.40 and 169,707.60 is: 254,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,675.60 : 464,513.40 = 169,707.60 : x
  2. Step 2: Convert to fraction form
    309,675.60/464,513.40 = 169,707.60/x
  3. Step 3: Cross multiply
    309,675.60x = 464,513.40 × 169,707.60
  4. Step 4: Simplify right side
    309,675.60x = 78,831,454,281.84
  5. Step 5: Solve for x
    x = 78,831,454,281.84/309,675.60
  6. Step 6: Final answer
    x = 254,561.40

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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.