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Finding the Fourth Proportional to 210,086.40, 314,866.80 and 104,934.72

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Solution

The fourth proportional to 210,086.40, 314,866.80 and 104,934.72 is: 157,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,086.40 : 314,866.80 = 104,934.72 : x
  2. Step 2: Convert to fraction form
    210,086.40/314,866.80 = 104,934.72/x
  3. Step 3: Cross multiply
    210,086.40x = 314,866.80 × 104,934.72
  4. Step 4: Simplify right side
    210,086.40x = 33,040,459,495.30
  5. Step 5: Solve for x
    x = 33,040,459,495.30/210,086.40
  6. Step 6: Final answer
    x = 157,270.82

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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.