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Finding the Fourth Proportional to 292,904.80, 438,838.80 and 274,242.40

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Solution

The fourth proportional to 292,904.80, 438,838.80 and 274,242.40 is: 410,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,904.80 : 438,838.80 = 274,242.40 : x
  2. Step 2: Convert to fraction form
    292,904.80/438,838.80 = 274,242.40/x
  3. Step 3: Cross multiply
    292,904.80x = 438,838.80 × 274,242.40
  4. Step 4: Simplify right side
    292,904.80x = 120,348,205,725.12
  5. Step 5: Solve for x
    x = 120,348,205,725.12/292,904.80
  6. Step 6: Final answer
    x = 410,878.23

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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.