Home / 281,736.18-388,795.16-152,678.21

Finding the Fourth Proportional to 281,736.18, 388,795.16 and 152,678.21

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Solution

The fourth proportional to 281,736.18, 388,795.16 and 152,678.21 is: 210,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,736.18 : 388,795.16 = 152,678.21 : x
  2. Step 2: Convert to fraction form
    281,736.18/388,795.16 = 152,678.21/x
  3. Step 3: Cross multiply
    281,736.18x = 388,795.16 × 152,678.21
  4. Step 4: Simplify right side
    281,736.18x = 59,360,547,523.18
  5. Step 5: Solve for x
    x = 59,360,547,523.18/281,736.18
  6. Step 6: Final answer
    x = 210,695.51

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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.