Home / 292,259.10-438,279.30-102,646.20

Finding the Fourth Proportional to 292,259.10, 438,279.30 and 102,646.20

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Solution

The fourth proportional to 292,259.10, 438,279.30 and 102,646.20 is: 153,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,259.10 : 438,279.30 = 102,646.20 : x
  2. Step 2: Convert to fraction form
    292,259.10/438,279.30 = 102,646.20/x
  3. Step 3: Cross multiply
    292,259.10x = 438,279.30 × 102,646.20
  4. Step 4: Simplify right side
    292,259.10x = 44,987,704,683.66
  5. Step 5: Solve for x
    x = 44,987,704,683.66/292,259.10
  6. Step 6: Final answer
    x = 153,930.89

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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.