Home / 285,106.42-393,459.20-157,782.04

Finding the Fourth Proportional to 285,106.42, 393,459.20 and 157,782.04

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Solution

The fourth proportional to 285,106.42, 393,459.20 and 157,782.04 is: 217,746.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,106.42 : 393,459.20 = 157,782.04 : x
  2. Step 2: Convert to fraction form
    285,106.42/393,459.20 = 157,782.04/x
  3. Step 3: Cross multiply
    285,106.42x = 393,459.20 × 157,782.04
  4. Step 4: Simplify right side
    285,106.42x = 62,080,795,232.77
  5. Step 5: Solve for x
    x = 62,080,795,232.77/285,106.42
  6. Step 6: Final answer
    x = 217,746.04

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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.