Home / 281,331.01-388,268-160,502.10

Finding the Fourth Proportional to 281,331.01, 388,268 and 160,502.10

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Solution

The fourth proportional to 281,331.01, 388,268 and 160,502.10 is: 221,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,331.01 : 388,268 = 160,502.10 : x
  2. Step 2: Convert to fraction form
    281,331.01/388,268 = 160,502.10/x
  3. Step 3: Cross multiply
    281,331.01x = 388,268 × 160,502.10
  4. Step 4: Simplify right side
    281,331.01x = 62,317,829,362.80
  5. Step 5: Solve for x
    x = 62,317,829,362.80/281,331.01
  6. Step 6: Final answer
    x = 221,510.70

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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.