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Finding the Fourth Proportional to 341,403.76, 471,359.12 and 305,532.10

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Solution

The fourth proportional to 341,403.76, 471,359.12 and 305,532.10 is: 421,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,403.76 : 471,359.12 = 305,532.10 : x
  2. Step 2: Convert to fraction form
    341,403.76/471,359.12 = 305,532.10/x
  3. Step 3: Cross multiply
    341,403.76x = 471,359.12 × 305,532.10
  4. Step 4: Simplify right side
    341,403.76x = 144,015,340,849.29
  5. Step 5: Solve for x
    x = 144,015,340,849.29/341,403.76
  6. Step 6: Final answer
    x = 421,832.91

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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.