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Finding the Fourth Proportional to 212,728.68, 318,792.14 and 118,000.60

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Solution

The fourth proportional to 212,728.68, 318,792.14 and 118,000.60 is: 176,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,728.68 : 318,792.14 = 118,000.60 : x
  2. Step 2: Convert to fraction form
    212,728.68/318,792.14 = 118,000.60/x
  3. Step 3: Cross multiply
    212,728.68x = 318,792.14 × 118,000.60
  4. Step 4: Simplify right side
    212,728.68x = 37,617,663,795.28
  5. Step 5: Solve for x
    x = 37,617,663,795.28/212,728.68
  6. Step 6: Final answer
    x = 176,834.00

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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.