Home / 281,192.13-388,045.08-153,867.69

Finding the Fourth Proportional to 281,192.13, 388,045.08 and 153,867.69

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Solution

The fourth proportional to 281,192.13, 388,045.08 and 153,867.69 is: 212,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,192.13 : 388,045.08 = 153,867.69 : x
  2. Step 2: Convert to fraction form
    281,192.13/388,045.08 = 153,867.69/x
  3. Step 3: Cross multiply
    281,192.13x = 388,045.08 × 153,867.69
  4. Step 4: Simplify right side
    281,192.13x = 59,707,600,075.47
  5. Step 5: Solve for x
    x = 59,707,600,075.47/281,192.13
  6. Step 6: Final answer
    x = 212,337.38

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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.