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Finding the Fourth Proportional to 411,373.32, 617,152.32 and 145,136.04

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Solution

The fourth proportional to 411,373.32, 617,152.32 and 145,136.04 is: 217,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,373.32 : 617,152.32 = 145,136.04 : x
  2. Step 2: Convert to fraction form
    411,373.32/617,152.32 = 145,136.04/x
  3. Step 3: Cross multiply
    411,373.32x = 617,152.32 × 145,136.04
  4. Step 4: Simplify right side
    411,373.32x = 89,571,043,801.61
  5. Step 5: Solve for x
    x = 89,571,043,801.61/411,373.32
  6. Step 6: Final answer
    x = 217,736.64

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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.