Home / 487,820.10-731,837.67-146,249.91

Finding the Fourth Proportional to 487,820.10, 731,837.67 and 146,249.91

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Solution

The fourth proportional to 487,820.10, 731,837.67 and 146,249.91 is: 219,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,820.10 : 731,837.67 = 146,249.91 : x
  2. Step 2: Convert to fraction form
    487,820.10/731,837.67 = 146,249.91/x
  3. Step 3: Cross multiply
    487,820.10x = 731,837.67 × 146,249.91
  4. Step 4: Simplify right side
    487,820.10x = 107,031,193,372.11
  5. Step 5: Solve for x
    x = 107,031,193,372.11/487,820.10
  6. Step 6: Final answer
    x = 219,407.10

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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.