Home / 285,061.04-393,378.32-157,729.04

Finding the Fourth Proportional to 285,061.04, 393,378.32 and 157,729.04

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Solution

The fourth proportional to 285,061.04, 393,378.32 and 157,729.04 is: 217,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,061.04 : 393,378.32 = 157,729.04 : x
  2. Step 2: Convert to fraction form
    285,061.04/393,378.32 = 157,729.04/x
  3. Step 3: Cross multiply
    285,061.04x = 393,378.32 × 157,729.04
  4. Step 4: Simplify right side
    285,061.04x = 62,047,184,770.41
  5. Step 5: Solve for x
    x = 62,047,184,770.41/285,061.04
  6. Step 6: Final answer
    x = 217,662.80

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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.