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Finding the Fourth Proportional to 425,602.81, 638,592.26 and 223,150.52

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Solution

The fourth proportional to 425,602.81, 638,592.26 and 223,150.52 is: 334,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,602.81 : 638,592.26 = 223,150.52 : x
  2. Step 2: Convert to fraction form
    425,602.81/638,592.26 = 223,150.52/x
  3. Step 3: Cross multiply
    425,602.81x = 638,592.26 × 223,150.52
  4. Step 4: Simplify right side
    425,602.81x = 142,502,193,571.66
  5. Step 5: Solve for x
    x = 142,502,193,571.66/425,602.81
  6. Step 6: Final answer
    x = 334,824.38

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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.