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Finding the Fourth Proportional to 371,210.51, 512,005.86 and 340,682.01

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Solution

The fourth proportional to 371,210.51, 512,005.86 and 340,682.01 is: 469,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,210.51 : 512,005.86 = 340,682.01 : x
  2. Step 2: Convert to fraction form
    371,210.51/512,005.86 = 340,682.01/x
  3. Step 3: Cross multiply
    371,210.51x = 512,005.86 × 340,682.01
  4. Step 4: Simplify right side
    371,210.51x = 174,431,185,516.58
  5. Step 5: Solve for x
    x = 174,431,185,516.58/371,210.51
  6. Step 6: Final answer
    x = 469,898.30

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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.