Home / 281,700.19-388,746.60-152,638.56

Finding the Fourth Proportional to 281,700.19, 388,746.60 and 152,638.56

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Solution

The fourth proportional to 281,700.19, 388,746.60 and 152,638.56 is: 210,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,700.19 : 388,746.60 = 152,638.56 : x
  2. Step 2: Convert to fraction form
    281,700.19/388,746.60 = 152,638.56/x
  3. Step 3: Cross multiply
    281,700.19x = 388,746.60 × 152,638.56
  4. Step 4: Simplify right side
    281,700.19x = 59,337,721,515.09
  5. Step 5: Solve for x
    x = 59,337,721,515.09/281,700.19
  6. Step 6: Final answer
    x = 210,641.40

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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.