Home / 292,345.20-438,518.88-105,371.28

Finding the Fourth Proportional to 292,345.20, 438,518.88 and 105,371.28

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Solution

The fourth proportional to 292,345.20, 438,518.88 and 105,371.28 is: 158,057.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,345.20 : 438,518.88 = 105,371.28 : x
  2. Step 2: Convert to fraction form
    292,345.20/438,518.88 = 105,371.28/x
  3. Step 3: Cross multiply
    292,345.20x = 438,518.88 × 105,371.28
  4. Step 4: Simplify right side
    292,345.20x = 46,207,295,689.77
  5. Step 5: Solve for x
    x = 46,207,295,689.77/292,345.20
  6. Step 6: Final answer
    x = 158,057.31

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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.