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Finding the Fourth Proportional to 312,164.40, 468,199.08 and 101,802

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Solution

The fourth proportional to 312,164.40, 468,199.08 and 101,802 is: 152,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,164.40 : 468,199.08 = 101,802 : x
  2. Step 2: Convert to fraction form
    312,164.40/468,199.08 = 101,802/x
  3. Step 3: Cross multiply
    312,164.40x = 468,199.08 × 101,802
  4. Step 4: Simplify right side
    312,164.40x = 47,663,602,742.16
  5. Step 5: Solve for x
    x = 47,663,602,742.16/312,164.40
  6. Step 6: Final answer
    x = 152,687.50

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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.