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Finding the Fourth Proportional to 243,098.15, 335,492.28 and 135,689.18

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Solution

The fourth proportional to 243,098.15, 335,492.28 and 135,689.18 is: 187,260.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,098.15 : 335,492.28 = 135,689.18 : x
  2. Step 2: Convert to fraction form
    243,098.15/335,492.28 = 135,689.18/x
  3. Step 3: Cross multiply
    243,098.15x = 335,492.28 × 135,689.18
  4. Step 4: Simplify right side
    243,098.15x = 45,522,670,692.07
  5. Step 5: Solve for x
    x = 45,522,670,692.07/243,098.15
  6. Step 6: Final answer
    x = 187,260.46

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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.