Home / 285,235.06-393,609.42-156,148.79

Finding the Fourth Proportional to 285,235.06, 393,609.42 and 156,148.79

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Solution

The fourth proportional to 285,235.06, 393,609.42 and 156,148.79 is: 215,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,235.06 : 393,609.42 = 156,148.79 : x
  2. Step 2: Convert to fraction form
    285,235.06/393,609.42 = 156,148.79/x
  3. Step 3: Cross multiply
    285,235.06x = 393,609.42 × 156,148.79
  4. Step 4: Simplify right side
    285,235.06x = 61,461,633,783.22
  5. Step 5: Solve for x
    x = 61,461,633,783.22/285,235.06
  6. Step 6: Final answer
    x = 215,477.13

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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.