Home / 281,196.51-388,050.12-152,134.56

Finding the Fourth Proportional to 281,196.51, 388,050.12 and 152,134.56

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Solution

The fourth proportional to 281,196.51, 388,050.12 and 152,134.56 is: 209,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,196.51 : 388,050.12 = 152,134.56 : x
  2. Step 2: Convert to fraction form
    281,196.51/388,050.12 = 152,134.56/x
  3. Step 3: Cross multiply
    281,196.51x = 388,050.12 × 152,134.56
  4. Step 4: Simplify right side
    281,196.51x = 59,035,834,264.15
  5. Step 5: Solve for x
    x = 59,035,834,264.15/281,196.51
  6. Step 6: Final answer
    x = 209,945.12

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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.