Home / 411,927.90-618,256.35-243,237.30

Finding the Fourth Proportional to 411,927.90, 618,256.35 and 243,237.30

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Solution

The fourth proportional to 411,927.90, 618,256.35 and 243,237.30 is: 365,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,927.90 : 618,256.35 = 243,237.30 : x
  2. Step 2: Convert to fraction form
    411,927.90/618,256.35 = 243,237.30/x
  3. Step 3: Cross multiply
    411,927.90x = 618,256.35 × 243,237.30
  4. Step 4: Simplify right side
    411,927.90x = 150,383,005,281.86
  5. Step 5: Solve for x
    x = 150,383,005,281.86/411,927.90
  6. Step 6: Final answer
    x = 365,071.18

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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.