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Finding the Fourth Proportional to 346,372.32, 478,073.49 and 203,178.49

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Solution

The fourth proportional to 346,372.32, 478,073.49 and 203,178.49 is: 280,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,372.32 : 478,073.49 = 203,178.49 : x
  2. Step 2: Convert to fraction form
    346,372.32/478,073.49 = 203,178.49/x
  3. Step 3: Cross multiply
    346,372.32x = 478,073.49 × 203,178.49
  4. Step 4: Simplify right side
    346,372.32x = 97,134,248,791.34
  5. Step 5: Solve for x
    x = 97,134,248,791.34/346,372.32
  6. Step 6: Final answer
    x = 280,433.06

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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.