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Finding the Fourth Proportional to 291,915.14, 402,609.65 and 201,250.32

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Solution

The fourth proportional to 291,915.14, 402,609.65 and 201,250.32 is: 277,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,915.14 : 402,609.65 = 201,250.32 : x
  2. Step 2: Convert to fraction form
    291,915.14/402,609.65 = 201,250.32/x
  3. Step 3: Cross multiply
    291,915.14x = 402,609.65 × 201,250.32
  4. Step 4: Simplify right side
    291,915.14x = 81,025,320,897.59
  5. Step 5: Solve for x
    x = 81,025,320,897.59/291,915.14
  6. Step 6: Final answer
    x = 277,564.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.