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Finding the Fourth Proportional to 368,776.40, 552,775.80 and 210,664.40

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Solution

The fourth proportional to 368,776.40, 552,775.80 and 210,664.40 is: 315,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,776.40 : 552,775.80 = 210,664.40 : x
  2. Step 2: Convert to fraction form
    368,776.40/552,775.80 = 210,664.40/x
  3. Step 3: Cross multiply
    368,776.40x = 552,775.80 × 210,664.40
  4. Step 4: Simplify right side
    368,776.40x = 116,450,182,241.52
  5. Step 5: Solve for x
    x = 116,450,182,241.52/368,776.40
  6. Step 6: Final answer
    x = 315,774.50

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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.