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Finding the Fourth Proportional to 292,129.93, 438,194.90 and 70,513.93

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Solution

The fourth proportional to 292,129.93, 438,194.90 and 70,513.93 is: 105,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,129.93 : 438,194.90 = 70,513.93 : x
  2. Step 2: Convert to fraction form
    292,129.93/438,194.90 = 70,513.93/x
  3. Step 3: Cross multiply
    292,129.93x = 438,194.90 × 70,513.93
  4. Step 4: Simplify right side
    292,129.93x = 30,898,844,504.96
  5. Step 5: Solve for x
    x = 30,898,844,504.96/292,129.93
  6. Step 6: Final answer
    x = 105,770.90

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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.