Home / 281,562.08-388,555.74-154,242.20

Finding the Fourth Proportional to 281,562.08, 388,555.74 and 154,242.20

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Solution

The fourth proportional to 281,562.08, 388,555.74 and 154,242.20 is: 212,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,562.08 : 388,555.74 = 154,242.20 : x
  2. Step 2: Convert to fraction form
    281,562.08/388,555.74 = 154,242.20/x
  3. Step 3: Cross multiply
    281,562.08x = 388,555.74 × 154,242.20
  4. Step 4: Simplify right side
    281,562.08x = 59,931,692,160.23
  5. Step 5: Solve for x
    x = 59,931,692,160.23/281,562.08
  6. Step 6: Final answer
    x = 212,854.27

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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.