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Finding the Fourth Proportional to 423,226, 634,998.84 and 223,538.32

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Solution

The fourth proportional to 423,226, 634,998.84 and 223,538.32 is: 335,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,226 : 634,998.84 = 223,538.32 : x
  2. Step 2: Convert to fraction form
    423,226/634,998.84 = 223,538.32/x
  3. Step 3: Cross multiply
    423,226x = 634,998.84 × 223,538.32
  4. Step 4: Simplify right side
    423,226x = 141,946,573,895.55
  5. Step 5: Solve for x
    x = 141,946,573,895.55/423,226
  6. Step 6: Final answer
    x = 335,391.90

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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.