Home / 292,838.40-439,279.20-105,825.60

Finding the Fourth Proportional to 292,838.40, 439,279.20 and 105,825.60

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Solution

The fourth proportional to 292,838.40, 439,279.20 and 105,825.60 is: 158,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,838.40 : 439,279.20 = 105,825.60 : x
  2. Step 2: Convert to fraction form
    292,838.40/439,279.20 = 105,825.60/x
  3. Step 3: Cross multiply
    292,838.40x = 439,279.20 × 105,825.60
  4. Step 4: Simplify right side
    292,838.40x = 46,486,984,907.52
  5. Step 5: Solve for x
    x = 46,486,984,907.52/292,838.40
  6. Step 6: Final answer
    x = 158,746.21

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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.