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Finding the Fourth Proportional to 191,281.92, 286,938.88 and 51,040

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Solution

The fourth proportional to 191,281.92, 286,938.88 and 51,040 is: 76,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,281.92 : 286,938.88 = 51,040 : x
  2. Step 2: Convert to fraction form
    191,281.92/286,938.88 = 51,040/x
  3. Step 3: Cross multiply
    191,281.92x = 286,938.88 × 51,040
  4. Step 4: Simplify right side
    191,281.92x = 14,645,360,435.20
  5. Step 5: Solve for x
    x = 14,645,360,435.20/191,281.92
  6. Step 6: Final answer
    x = 76,564.27

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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.