Home / 281,192.04-388,045.26-153,867.65

Finding the Fourth Proportional to 281,192.04, 388,045.26 and 153,867.65

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Solution

The fourth proportional to 281,192.04, 388,045.26 and 153,867.65 is: 212,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,192.04 : 388,045.26 = 153,867.65 : x
  2. Step 2: Convert to fraction form
    281,192.04/388,045.26 = 153,867.65/x
  3. Step 3: Cross multiply
    281,192.04x = 388,045.26 × 153,867.65
  4. Step 4: Simplify right side
    281,192.04x = 59,707,610,309.61
  5. Step 5: Solve for x
    x = 59,707,610,309.61/281,192.04
  6. Step 6: Final answer
    x = 212,337.48

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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.