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Finding the Fourth Proportional to 292,920.54, 439,380.84 and 105,888.30

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Solution

The fourth proportional to 292,920.54, 439,380.84 and 105,888.30 is: 158,832.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,920.54 : 439,380.84 = 105,888.30 : x
  2. Step 2: Convert to fraction form
    292,920.54/439,380.84 = 105,888.30/x
  3. Step 3: Cross multiply
    292,920.54x = 439,380.84 × 105,888.30
  4. Step 4: Simplify right side
    292,920.54x = 46,525,290,200.17
  5. Step 5: Solve for x
    x = 46,525,290,200.17/292,920.54
  6. Step 6: Final answer
    x = 158,832.46

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1.5x scale

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.