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Finding the Fourth Proportional to 341,123.28, 470,879.82 and 256,486.20

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Solution

The fourth proportional to 341,123.28, 470,879.82 and 256,486.20 is: 354,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,123.28 : 470,879.82 = 256,486.20 : x
  2. Step 2: Convert to fraction form
    341,123.28/470,879.82 = 256,486.20/x
  3. Step 3: Cross multiply
    341,123.28x = 470,879.82 × 256,486.20
  4. Step 4: Simplify right side
    341,123.28x = 120,774,175,688.48
  5. Step 5: Solve for x
    x = 120,774,175,688.48/341,123.28
  6. Step 6: Final answer
    x = 354,048.47

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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.