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Finding the Fourth Proportional to 318,000.36, 438,848.10 and 174,774

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Solution

The fourth proportional to 318,000.36, 438,848.10 and 174,774 is: 241,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,000.36 : 438,848.10 = 174,774 : x
  2. Step 2: Convert to fraction form
    318,000.36/438,848.10 = 174,774/x
  3. Step 3: Cross multiply
    318,000.36x = 438,848.10 × 174,774
  4. Step 4: Simplify right side
    318,000.36x = 76,699,237,829.40
  5. Step 5: Solve for x
    x = 76,699,237,829.40/318,000.36
  6. Step 6: Final answer
    x = 241,192.30

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1.5x scale

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.