Home / 487,961.19-731,970.50-188,443.35

Finding the Fourth Proportional to 487,961.19, 731,970.50 and 188,443.35

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Solution

The fourth proportional to 487,961.19, 731,970.50 and 188,443.35 is: 282,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,961.19 : 731,970.50 = 188,443.35 : x
  2. Step 2: Convert to fraction form
    487,961.19/731,970.50 = 188,443.35/x
  3. Step 3: Cross multiply
    487,961.19x = 731,970.50 × 188,443.35
  4. Step 4: Simplify right side
    487,961.19x = 137,934,972,178.96
  5. Step 5: Solve for x
    x = 137,934,972,178.96/487,961.19
  6. Step 6: Final answer
    x = 282,676.11

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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.