Home / 208,795.76-312,931.20-149,746.64

Finding the Fourth Proportional to 208,795.76, 312,931.20 and 149,746.64

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Solution

The fourth proportional to 208,795.76, 312,931.20 and 149,746.64 is: 224,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,795.76 : 312,931.20 = 149,746.64 : x
  2. Step 2: Convert to fraction form
    208,795.76/312,931.20 = 149,746.64/x
  3. Step 3: Cross multiply
    208,795.76x = 312,931.20 × 149,746.64
  4. Step 4: Simplify right side
    208,795.76x = 46,860,395,751.17
  5. Step 5: Solve for x
    x = 46,860,395,751.17/208,795.76
  6. Step 6: Final answer
    x = 224,431.74

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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.