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Finding the Fourth Proportional to 346,545.52, 478,260.60 and 275,511.76

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Solution

The fourth proportional to 346,545.52, 478,260.60 and 275,511.76 is: 380,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,545.52 : 478,260.60 = 275,511.76 : x
  2. Step 2: Convert to fraction form
    346,545.52/478,260.60 = 275,511.76/x
  3. Step 3: Cross multiply
    346,545.52x = 478,260.60 × 275,511.76
  4. Step 4: Simplify right side
    346,545.52x = 131,766,419,644.66
  5. Step 5: Solve for x
    x = 131,766,419,644.66/346,545.52
  6. Step 6: Final answer
    x = 380,228.32

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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.