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Finding the Fourth Proportional to 256,479.70, 384,136.35 and 162,001.30

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Solution

The fourth proportional to 256,479.70, 384,136.35 and 162,001.30 is: 242,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,479.70 : 384,136.35 = 162,001.30 : x
  2. Step 2: Convert to fraction form
    256,479.70/384,136.35 = 162,001.30/x
  3. Step 3: Cross multiply
    256,479.70x = 384,136.35 × 162,001.30
  4. Step 4: Simplify right side
    256,479.70x = 62,230,588,077.26
  5. Step 5: Solve for x
    x = 62,230,588,077.26/256,479.70
  6. Step 6: Final answer
    x = 242,633.58

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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.