Home / 292,260.10-438,280.80-102,647.20

Finding the Fourth Proportional to 292,260.10, 438,280.80 and 102,647.20

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Solution

The fourth proportional to 292,260.10, 438,280.80 and 102,647.20 is: 153,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,260.10 : 438,280.80 = 102,647.20 : x
  2. Step 2: Convert to fraction form
    292,260.10/438,280.80 = 102,647.20/x
  3. Step 3: Cross multiply
    292,260.10x = 438,280.80 × 102,647.20
  4. Step 4: Simplify right side
    292,260.10x = 44,988,296,933.76
  5. Step 5: Solve for x
    x = 44,988,296,933.76/292,260.10
  6. Step 6: Final answer
    x = 153,932.39

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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.