Home / 411,962.40-618,308.10-243,271.80

Finding the Fourth Proportional to 411,962.40, 618,308.10 and 243,271.80

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Solution

The fourth proportional to 411,962.40, 618,308.10 and 243,271.80 is: 365,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,962.40 : 618,308.10 = 243,271.80 : x
  2. Step 2: Convert to fraction form
    411,962.40/618,308.10 = 243,271.80/x
  3. Step 3: Cross multiply
    411,962.40x = 618,308.10 × 243,271.80
  4. Step 4: Simplify right side
    411,962.40x = 150,416,924,441.58
  5. Step 5: Solve for x
    x = 150,416,924,441.58/411,962.40
  6. Step 6: Final answer
    x = 365,122.94

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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.