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Finding the Fourth Proportional to 346,323.96, 477,644.58 and 290,922.12

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Solution

The fourth proportional to 346,323.96, 477,644.58 and 290,922.12 is: 401,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,323.96 : 477,644.58 = 290,922.12 : x
  2. Step 2: Convert to fraction form
    346,323.96/477,644.58 = 290,922.12/x
  3. Step 3: Cross multiply
    346,323.96x = 477,644.58 × 290,922.12
  4. Step 4: Simplify right side
    346,323.96x = 138,957,373,820.11
  5. Step 5: Solve for x
    x = 138,957,373,820.11/346,323.96
  6. Step 6: Final answer
    x = 401,235.23

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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.