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Finding the Fourth Proportional to 651,750.72, 977,626.44 and 178,440

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Solution

The fourth proportional to 651,750.72, 977,626.44 and 178,440 is: 267,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,750.72 : 977,626.44 = 178,440 : x
  2. Step 2: Convert to fraction form
    651,750.72/977,626.44 = 178,440/x
  3. Step 3: Cross multiply
    651,750.72x = 977,626.44 × 178,440
  4. Step 4: Simplify right side
    651,750.72x = 174,447,661,953.60
  5. Step 5: Solve for x
    x = 174,447,661,953.60/651,750.72
  6. Step 6: Final answer
    x = 267,660.10

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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.