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Finding the Fourth Proportional to 358,736.71, 538,105.07 and 312,547.27

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Solution

The fourth proportional to 358,736.71, 538,105.07 and 312,547.27 is: 468,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,736.71 : 538,105.07 = 312,547.27 : x
  2. Step 2: Convert to fraction form
    358,736.71/538,105.07 = 312,547.27/x
  3. Step 3: Cross multiply
    358,736.71x = 538,105.07 × 312,547.27
  4. Step 4: Simplify right side
    358,736.71x = 168,183,269,038.92
  5. Step 5: Solve for x
    x = 168,183,269,038.92/358,736.71
  6. Step 6: Final answer
    x = 468,820.91

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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.