Home / 292,465.68-438,643.12-142,555.36

Finding the Fourth Proportional to 292,465.68, 438,643.12 and 142,555.36

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Solution

The fourth proportional to 292,465.68, 438,643.12 and 142,555.36 is: 213,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,465.68 : 438,643.12 = 142,555.36 : x
  2. Step 2: Convert to fraction form
    292,465.68/438,643.12 = 142,555.36/x
  3. Step 3: Cross multiply
    292,465.68x = 438,643.12 × 142,555.36
  4. Step 4: Simplify right side
    292,465.68x = 62,530,927,883.12
  5. Step 5: Solve for x
    x = 62,530,927,883.12/292,465.68
  6. Step 6: Final answer
    x = 213,806.04

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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.