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Finding the Fourth Proportional to 346,671.38, 478,362.50 and 203,379.14

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Solution

The fourth proportional to 346,671.38, 478,362.50 and 203,379.14 is: 280,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,671.38 : 478,362.50 = 203,379.14 : x
  2. Step 2: Convert to fraction form
    346,671.38/478,362.50 = 203,379.14/x
  3. Step 3: Cross multiply
    346,671.38x = 478,362.50 × 203,379.14
  4. Step 4: Simplify right side
    346,671.38x = 97,288,953,858.25
  5. Step 5: Solve for x
    x = 97,288,953,858.25/346,671.38
  6. Step 6: Final answer
    x = 280,637.40

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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.