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Finding the Fourth Proportional to 286,245.60, 429,368.40 and 179,957.40

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Solution

The fourth proportional to 286,245.60, 429,368.40 and 179,957.40 is: 269,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,245.60 : 429,368.40 = 179,957.40 : x
  2. Step 2: Convert to fraction form
    286,245.60/429,368.40 = 179,957.40/x
  3. Step 3: Cross multiply
    286,245.60x = 429,368.40 × 179,957.40
  4. Step 4: Simplify right side
    286,245.60x = 77,268,020,906.16
  5. Step 5: Solve for x
    x = 77,268,020,906.16/286,245.60
  6. Step 6: Final answer
    x = 269,936.10

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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.