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Finding the Fourth Proportional to 346,442.67, 478,138.34 and 193,490.27

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Solution

The fourth proportional to 346,442.67, 478,138.34 and 193,490.27 is: 267,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,442.67 : 478,138.34 = 193,490.27 : x
  2. Step 2: Convert to fraction form
    346,442.67/478,138.34 = 193,490.27/x
  3. Step 3: Cross multiply
    346,442.67x = 478,138.34 × 193,490.27
  4. Step 4: Simplify right side
    346,442.67x = 92,515,116,390.00
  5. Step 5: Solve for x
    x = 92,515,116,390.00/346,442.67
  6. Step 6: Final answer
    x = 267,043.08

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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.