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Finding the Fourth Proportional to 256,477.01, 384,715.51 and 69,488.51

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Solution

The fourth proportional to 256,477.01, 384,715.51 and 69,488.51 is: 104,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,477.01 : 384,715.51 = 69,488.51 : x
  2. Step 2: Convert to fraction form
    256,477.01/384,715.51 = 69,488.51/x
  3. Step 3: Cross multiply
    256,477.01x = 384,715.51 × 69,488.51
  4. Step 4: Simplify right side
    256,477.01x = 26,733,306,841.66
  5. Step 5: Solve for x
    x = 26,733,306,841.66/256,477.01
  6. Step 6: Final answer
    x = 104,232.76

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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.