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Finding the Fourth Proportional to 334,530.40, 501,798.48 and 85,212.16

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Solution

The fourth proportional to 334,530.40, 501,798.48 and 85,212.16 is: 127,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,530.40 : 501,798.48 = 85,212.16 : x
  2. Step 2: Convert to fraction form
    334,530.40/501,798.48 = 85,212.16/x
  3. Step 3: Cross multiply
    334,530.40x = 501,798.48 × 85,212.16
  4. Step 4: Simplify right side
    334,530.40x = 42,759,332,365.52
  5. Step 5: Solve for x
    x = 42,759,332,365.52/334,530.40
  6. Step 6: Final answer
    x = 127,818.97

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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.