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Finding the Fourth Proportional to 320,557.62, 480,411.70 and 170,474.74

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Solution

The fourth proportional to 320,557.62, 480,411.70 and 170,474.74 is: 255,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,557.62 : 480,411.70 = 170,474.74 : x
  2. Step 2: Convert to fraction form
    320,557.62/480,411.70 = 170,474.74/x
  3. Step 3: Cross multiply
    320,557.62x = 480,411.70 × 170,474.74
  4. Step 4: Simplify right side
    320,557.62x = 81,898,059,650.46
  5. Step 5: Solve for x
    x = 81,898,059,650.46/320,557.62
  6. Step 6: Final answer
    x = 255,486.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.