Home / 285,271.27-393,686.63-157,946.86

Finding the Fourth Proportional to 285,271.27, 393,686.63 and 157,946.86

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Solution

The fourth proportional to 285,271.27, 393,686.63 and 157,946.86 is: 217,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,271.27 : 393,686.63 = 157,946.86 : x
  2. Step 2: Convert to fraction form
    285,271.27/393,686.63 = 157,946.86/x
  3. Step 3: Cross multiply
    285,271.27x = 393,686.63 × 157,946.86
  4. Step 4: Simplify right side
    285,271.27x = 62,181,567,327.16
  5. Step 5: Solve for x
    x = 62,181,567,327.16/285,271.27
  6. Step 6: Final answer
    x = 217,973.47

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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.