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Finding the Fourth Proportional to 220,567.51, 304,300.70 and 129,868.03

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Solution

The fourth proportional to 220,567.51, 304,300.70 and 129,868.03 is: 179,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,567.51 : 304,300.70 = 129,868.03 : x
  2. Step 2: Convert to fraction form
    220,567.51/304,300.70 = 129,868.03/x
  3. Step 3: Cross multiply
    220,567.51x = 304,300.70 × 129,868.03
  4. Step 4: Simplify right side
    220,567.51x = 39,518,931,787.28
  5. Step 5: Solve for x
    x = 39,518,931,787.28/220,567.51
  6. Step 6: Final answer
    x = 179,169.32

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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.