Home / 287,963.14-432,076-147,820.26

Finding the Fourth Proportional to 287,963.14, 432,076 and 147,820.26

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Solution

The fourth proportional to 287,963.14, 432,076 and 147,820.26 is: 221,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,963.14 : 432,076 = 147,820.26 : x
  2. Step 2: Convert to fraction form
    287,963.14/432,076 = 147,820.26/x
  3. Step 3: Cross multiply
    287,963.14x = 432,076 × 147,820.26
  4. Step 4: Simplify right side
    287,963.14x = 63,869,586,659.76
  5. Step 5: Solve for x
    x = 63,869,586,659.76/287,963.14
  6. Step 6: Final answer
    x = 221,797.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.