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Finding the Fourth Proportional to 200,602.80, 300,985.20 and 88,304.40

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Solution

The fourth proportional to 200,602.80, 300,985.20 and 88,304.40 is: 132,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,602.80 : 300,985.20 = 88,304.40 : x
  2. Step 2: Convert to fraction form
    200,602.80/300,985.20 = 88,304.40/x
  3. Step 3: Cross multiply
    200,602.80x = 300,985.20 × 88,304.40
  4. Step 4: Simplify right side
    200,602.80x = 26,578,317,494.88
  5. Step 5: Solve for x
    x = 26,578,317,494.88/200,602.80
  6. Step 6: Final answer
    x = 132,492.26

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1.5x scale

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.