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Finding the Fourth Proportional to 456,160.16, 684,860.76 and 256,620.98

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Solution

The fourth proportional to 456,160.16, 684,860.76 and 256,620.98 is: 385,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,160.16 : 684,860.76 = 256,620.98 : x
  2. Step 2: Convert to fraction form
    456,160.16/684,860.76 = 256,620.98/x
  3. Step 3: Cross multiply
    456,160.16x = 684,860.76 × 256,620.98
  4. Step 4: Simplify right side
    456,160.16x = 175,749,635,970.44
  5. Step 5: Solve for x
    x = 175,749,635,970.44/456,160.16
  6. Step 6: Final answer
    x = 385,280.55

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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.