Home / 292,345.07-438,164.42-142,360.61

Finding the Fourth Proportional to 292,345.07, 438,164.42 and 142,360.61

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Solution

The fourth proportional to 292,345.07, 438,164.42 and 142,360.61 is: 213,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,345.07 : 438,164.42 = 142,360.61 : x
  2. Step 2: Convert to fraction form
    292,345.07/438,164.42 = 142,360.61/x
  3. Step 3: Cross multiply
    292,345.07x = 438,164.42 × 142,360.61
  4. Step 4: Simplify right side
    292,345.07x = 62,377,351,208.87
  5. Step 5: Solve for x
    x = 62,377,351,208.87/292,345.07
  6. Step 6: Final answer
    x = 213,368.92

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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.