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Finding the Fourth Proportional to 210,885.84, 316,365.66 and 136,078.14

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Solution

The fourth proportional to 210,885.84, 316,365.66 and 136,078.14 is: 204,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,885.84 : 316,365.66 = 136,078.14 : x
  2. Step 2: Convert to fraction form
    210,885.84/316,365.66 = 136,078.14/x
  3. Step 3: Cross multiply
    210,885.84x = 316,365.66 × 136,078.14
  4. Step 4: Simplify right side
    210,885.84x = 43,050,450,572.67
  5. Step 5: Solve for x
    x = 43,050,450,572.67/210,885.84
  6. Step 6: Final answer
    x = 204,141.02

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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.