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Finding the Fourth Proportional to 292,808.40, 439,277.40 and 134,998.80

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Solution

The fourth proportional to 292,808.40, 439,277.40 and 134,998.80 is: 202,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,808.40 : 439,277.40 = 134,998.80 : x
  2. Step 2: Convert to fraction form
    292,808.40/439,277.40 = 134,998.80/x
  3. Step 3: Cross multiply
    292,808.40x = 439,277.40 × 134,998.80
  4. Step 4: Simplify right side
    292,808.40x = 59,301,921,867.12
  5. Step 5: Solve for x
    x = 59,301,921,867.12/292,808.40
  6. Step 6: Final answer
    x = 202,528.08

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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.