Home / 285,159.06-393,514.74-157,831.92

Finding the Fourth Proportional to 285,159.06, 393,514.74 and 157,831.92

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Solution

The fourth proportional to 285,159.06, 393,514.74 and 157,831.92 is: 217,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,159.06 : 393,514.74 = 157,831.92 : x
  2. Step 2: Convert to fraction form
    285,159.06/393,514.74 = 157,831.92/x
  3. Step 3: Cross multiply
    285,159.06x = 393,514.74 × 157,831.92
  4. Step 4: Simplify right side
    285,159.06x = 62,109,186,962.50
  5. Step 5: Solve for x
    x = 62,109,186,962.50/285,159.06
  6. Step 6: Final answer
    x = 217,805.41

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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.