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Finding the Fourth Proportional to 292,264.80, 438,915.60 and 225,866.40

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Solution

The fourth proportional to 292,264.80, 438,915.60 and 225,866.40 is: 339,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,264.80 : 438,915.60 = 225,866.40 : x
  2. Step 2: Convert to fraction form
    292,264.80/438,915.60 = 225,866.40/x
  3. Step 3: Cross multiply
    292,264.80x = 438,915.60 × 225,866.40
  4. Step 4: Simplify right side
    292,264.80x = 99,136,286,475.84
  5. Step 5: Solve for x
    x = 99,136,286,475.84/292,264.80
  6. Step 6: Final answer
    x = 339,200.23

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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.