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Finding the Fourth Proportional to 461,343.60, 692,015.40 and 145,897.20

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Solution

The fourth proportional to 461,343.60, 692,015.40 and 145,897.20 is: 218,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,343.60 : 692,015.40 = 145,897.20 : x
  2. Step 2: Convert to fraction form
    461,343.60/692,015.40 = 145,897.20/x
  3. Step 3: Cross multiply
    461,343.60x = 692,015.40 × 145,897.20
  4. Step 4: Simplify right side
    461,343.60x = 100,963,109,216.88
  5. Step 5: Solve for x
    x = 100,963,109,216.88/461,343.60
  6. Step 6: Final answer
    x = 218,845.80

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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.