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Finding the Fourth Proportional to 285,191.40, 393,599.31 and 162,713.93

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Solution

The fourth proportional to 285,191.40, 393,599.31 and 162,713.93 is: 224,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,191.40 : 393,599.31 = 162,713.93 : x
  2. Step 2: Convert to fraction form
    285,191.40/393,599.31 = 162,713.93/x
  3. Step 3: Cross multiply
    285,191.40x = 393,599.31 × 162,713.93
  4. Step 4: Simplify right side
    285,191.40x = 64,044,090,949.21
  5. Step 5: Solve for x
    x = 64,044,090,949.21/285,191.40
  6. Step 6: Final answer
    x = 224,565.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.