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Finding the Fourth Proportional to 348,340.34, 480,703.89 and 203,230.50

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Solution

The fourth proportional to 348,340.34, 480,703.89 and 203,230.50 is: 280,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,340.34 : 480,703.89 = 203,230.50 : x
  2. Step 2: Convert to fraction form
    348,340.34/480,703.89 = 203,230.50/x
  3. Step 3: Cross multiply
    348,340.34x = 480,703.89 × 203,230.50
  4. Step 4: Simplify right side
    348,340.34x = 97,693,692,436.91
  5. Step 5: Solve for x
    x = 97,693,692,436.91/348,340.34
  6. Step 6: Final answer
    x = 280,454.72

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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.