Home / 281,472.42-388,432.53-152,412.30

Finding the Fourth Proportional to 281,472.42, 388,432.53 and 152,412.30

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Solution

The fourth proportional to 281,472.42, 388,432.53 and 152,412.30 is: 210,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,472.42 : 388,432.53 = 152,412.30 : x
  2. Step 2: Convert to fraction form
    281,472.42/388,432.53 = 152,412.30/x
  3. Step 3: Cross multiply
    281,472.42x = 388,432.53 × 152,412.30
  4. Step 4: Simplify right side
    281,472.42x = 59,201,895,292.12
  5. Step 5: Solve for x
    x = 59,201,895,292.12/281,472.42
  6. Step 6: Final answer
    x = 210,329.29

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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.