Home / 281,248.03-388,122.93-153,931.84

Finding the Fourth Proportional to 281,248.03, 388,122.93 and 153,931.84

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Solution

The fourth proportional to 281,248.03, 388,122.93 and 153,931.84 is: 212,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,248.03 : 388,122.93 = 153,931.84 : x
  2. Step 2: Convert to fraction form
    281,248.03/388,122.93 = 153,931.84/x
  3. Step 3: Cross multiply
    281,248.03x = 388,122.93 × 153,931.84
  4. Step 4: Simplify right side
    281,248.03x = 59,744,476,761.09
  5. Step 5: Solve for x
    x = 59,744,476,761.09/281,248.03
  6. Step 6: Final answer
    x = 212,426.29

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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.