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Finding the Fourth Proportional to 281,248.80, 388,012.32 and 173,632.08

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Solution

The fourth proportional to 281,248.80, 388,012.32 and 173,632.08 is: 239,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,248.80 : 388,012.32 = 173,632.08 : x
  2. Step 2: Convert to fraction form
    281,248.80/388,012.32 = 173,632.08/x
  3. Step 3: Cross multiply
    281,248.80x = 388,012.32 × 173,632.08
  4. Step 4: Simplify right side
    281,248.80x = 67,371,386,187.23
  5. Step 5: Solve for x
    x = 67,371,386,187.23/281,248.80
  6. Step 6: Final answer
    x = 239,543.73

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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.