Home / 292,255.19-438,407.64-102,699.20

Finding the Fourth Proportional to 292,255.19, 438,407.64 and 102,699.20

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Solution

The fourth proportional to 292,255.19, 438,407.64 and 102,699.20 is: 154,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,255.19 : 438,407.64 = 102,699.20 : x
  2. Step 2: Convert to fraction form
    292,255.19/438,407.64 = 102,699.20/x
  3. Step 3: Cross multiply
    292,255.19x = 438,407.64 × 102,699.20
  4. Step 4: Simplify right side
    292,255.19x = 45,024,113,901.89
  5. Step 5: Solve for x
    x = 45,024,113,901.89/292,255.19
  6. Step 6: Final answer
    x = 154,057.53

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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.