Home / 285,127.22-393,482.13-157,808.18

Finding the Fourth Proportional to 285,127.22, 393,482.13 and 157,808.18

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Solution

The fourth proportional to 285,127.22, 393,482.13 and 157,808.18 is: 217,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,127.22 : 393,482.13 = 157,808.18 : x
  2. Step 2: Convert to fraction form
    285,127.22/393,482.13 = 157,808.18/x
  3. Step 3: Cross multiply
    285,127.22x = 393,482.13 × 157,808.18
  4. Step 4: Simplify right side
    285,127.22x = 62,094,698,797.82
  5. Step 5: Solve for x
    x = 62,094,698,797.82/285,127.22
  6. Step 6: Final answer
    x = 217,778.92

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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.