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Finding the Fourth Proportional to 346,415.60, 519,623.40 and 228,220.40

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Solution

The fourth proportional to 346,415.60, 519,623.40 and 228,220.40 is: 342,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,415.60 : 519,623.40 = 228,220.40 : x
  2. Step 2: Convert to fraction form
    346,415.60/519,623.40 = 228,220.40/x
  3. Step 3: Cross multiply
    346,415.60x = 519,623.40 × 228,220.40
  4. Step 4: Simplify right side
    346,415.60x = 118,588,660,197.36
  5. Step 5: Solve for x
    x = 118,588,660,197.36/346,415.60
  6. Step 6: Final answer
    x = 342,330.60

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Similar ratio
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1.5x scale

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.