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Finding the Fourth Proportional to 371,354.74, 512,471.07 and 210,240.88

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Solution

The fourth proportional to 371,354.74, 512,471.07 and 210,240.88 is: 290,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,354.74 : 512,471.07 = 210,240.88 : x
  2. Step 2: Convert to fraction form
    371,354.74/512,471.07 = 210,240.88/x
  3. Step 3: Cross multiply
    371,354.74x = 512,471.07 × 210,240.88
  4. Step 4: Simplify right side
    371,354.74x = 107,742,368,731.34
  5. Step 5: Solve for x
    x = 107,742,368,731.34/371,354.74
  6. Step 6: Final answer
    x = 290,133.28

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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.