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Finding the Fourth Proportional to 285,302.93, 393,713.24 and 157,975.79

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Solution

The fourth proportional to 285,302.93, 393,713.24 and 157,975.79 is: 218,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,302.93 : 393,713.24 = 157,975.79 : x
  2. Step 2: Convert to fraction form
    285,302.93/393,713.24 = 157,975.79/x
  3. Step 3: Cross multiply
    285,302.93x = 393,713.24 × 157,975.79
  4. Step 4: Simplify right side
    285,302.93x = 62,197,160,909.27
  5. Step 5: Solve for x
    x = 62,197,160,909.27/285,302.93
  6. Step 6: Final answer
    x = 218,003.93

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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.