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Finding the Fourth Proportional to 191,477.60, 287,216.40 and 107,496.80

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Solution

The fourth proportional to 191,477.60, 287,216.40 and 107,496.80 is: 161,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,477.60 : 287,216.40 = 107,496.80 : x
  2. Step 2: Convert to fraction form
    191,477.60/287,216.40 = 107,496.80/x
  3. Step 3: Cross multiply
    191,477.60x = 287,216.40 × 107,496.80
  4. Step 4: Simplify right side
    191,477.60x = 30,874,843,907.52
  5. Step 5: Solve for x
    x = 30,874,843,907.52/191,477.60
  6. Step 6: Final answer
    x = 161,245.20

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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.