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Finding the Fourth Proportional to 212,323.17, 318,485.00 and 54,552.93

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Solution

The fourth proportional to 212,323.17, 318,485.00 and 54,552.93 is: 81,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,323.17 : 318,485.00 = 54,552.93 : x
  2. Step 2: Convert to fraction form
    212,323.17/318,485.00 = 54,552.93/x
  3. Step 3: Cross multiply
    212,323.17x = 318,485.00 × 54,552.93
  4. Step 4: Simplify right side
    212,323.17x = 17,374,289,638.29
  5. Step 5: Solve for x
    x = 17,374,289,638.29/212,323.17
  6. Step 6: Final answer
    x = 81,829.46

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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.