Home / 292,276.24-438,363.92-81,864.16

Finding the Fourth Proportional to 292,276.24, 438,363.92 and 81,864.16

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Solution

The fourth proportional to 292,276.24, 438,363.92 and 81,864.16 is: 122,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,276.24 : 438,363.92 = 81,864.16 : x
  2. Step 2: Convert to fraction form
    292,276.24/438,363.92 = 81,864.16/x
  3. Step 3: Cross multiply
    292,276.24x = 438,363.92 × 81,864.16
  4. Step 4: Simplify right side
    292,276.24x = 35,886,294,085.11
  5. Step 5: Solve for x
    x = 35,886,294,085.11/292,276.24
  6. Step 6: Final answer
    x = 122,782.11

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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.