Home / 281,300.28-388,205.10-160,461.24

Finding the Fourth Proportional to 281,300.28, 388,205.10 and 160,461.24

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Solution

The fourth proportional to 281,300.28, 388,205.10 and 160,461.24 is: 221,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,300.28 : 388,205.10 = 160,461.24 : x
  2. Step 2: Convert to fraction form
    281,300.28/388,205.10 = 160,461.24/x
  3. Step 3: Cross multiply
    281,300.28x = 388,205.10 × 160,461.24
  4. Step 4: Simplify right side
    281,300.28x = 62,291,871,720.32
  5. Step 5: Solve for x
    x = 62,291,871,720.32/281,300.28
  6. Step 6: Final answer
    x = 221,442.62

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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.