Home / 242,705.46-334,935.09-135,282.30

Finding the Fourth Proportional to 242,705.46, 334,935.09 and 135,282.30

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Solution

The fourth proportional to 242,705.46, 334,935.09 and 135,282.30 is: 186,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,705.46 : 334,935.09 = 135,282.30 : x
  2. Step 2: Convert to fraction form
    242,705.46/334,935.09 = 135,282.30/x
  3. Step 3: Cross multiply
    242,705.46x = 334,935.09 × 135,282.30
  4. Step 4: Simplify right side
    242,705.46x = 45,310,788,649.50
  5. Step 5: Solve for x
    x = 45,310,788,649.50/242,705.46
  6. Step 6: Final answer
    x = 186,690.44

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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.