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Finding the Fourth Proportional to 472,915.60, 652,618.08 and 258,059.20

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Solution

The fourth proportional to 472,915.60, 652,618.08 and 258,059.20 is: 356,118.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,915.60 : 652,618.08 = 258,059.20 : x
  2. Step 2: Convert to fraction form
    472,915.60/652,618.08 = 258,059.20/x
  3. Step 3: Cross multiply
    472,915.60x = 652,618.08 × 258,059.20
  4. Step 4: Simplify right side
    472,915.60x = 168,414,099,630.34
  5. Step 5: Solve for x
    x = 168,414,099,630.34/472,915.60
  6. Step 6: Final answer
    x = 356,118.72

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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.