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Finding the Fourth Proportional to 403,356, 556,631.28 and 224,504.16

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Solution

The fourth proportional to 403,356, 556,631.28 and 224,504.16 is: 309,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,356 : 556,631.28 = 224,504.16 : x
  2. Step 2: Convert to fraction form
    403,356/556,631.28 = 224,504.16/x
  3. Step 3: Cross multiply
    403,356x = 556,631.28 × 224,504.16
  4. Step 4: Simplify right side
    403,356x = 124,966,037,946.13
  5. Step 5: Solve for x
    x = 124,966,037,946.13/403,356
  6. Step 6: Final answer
    x = 309,815.74

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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.