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Finding the Fourth Proportional to 224,343.04, 309,581.76 and 139,458.64

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Solution

The fourth proportional to 224,343.04, 309,581.76 and 139,458.64 is: 192,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,343.04 : 309,581.76 = 139,458.64 : x
  2. Step 2: Convert to fraction form
    224,343.04/309,581.76 = 139,458.64/x
  3. Step 3: Cross multiply
    224,343.04x = 309,581.76 × 139,458.64
  4. Step 4: Simplify right side
    224,343.04x = 43,173,851,218.41
  5. Step 5: Solve for x
    x = 43,173,851,218.41/224,343.04
  6. Step 6: Final answer
    x = 192,445.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.