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Finding the Fourth Proportional to 286,742.60, 429,522.60 and 168,054.20

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Solution

The fourth proportional to 286,742.60, 429,522.60 and 168,054.20 is: 251,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,742.60 : 429,522.60 = 168,054.20 : x
  2. Step 2: Convert to fraction form
    286,742.60/429,522.60 = 168,054.20/x
  3. Step 3: Cross multiply
    286,742.60x = 429,522.60 × 168,054.20
  4. Step 4: Simplify right side
    286,742.60x = 72,183,076,924.92
  5. Step 5: Solve for x
    x = 72,183,076,924.92/286,742.60
  6. Step 6: Final answer
    x = 251,734.75

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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.