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Finding the Fourth Proportional to 368,053.54, 507,913.95 and 206,908.90

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Solution

The fourth proportional to 368,053.54, 507,913.95 and 206,908.90 is: 285,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,053.54 : 507,913.95 = 206,908.90 : x
  2. Step 2: Convert to fraction form
    368,053.54/507,913.95 = 206,908.90/x
  3. Step 3: Cross multiply
    368,053.54x = 507,913.95 × 206,908.90
  4. Step 4: Simplify right side
    368,053.54x = 105,091,916,689.16
  5. Step 5: Solve for x
    x = 105,091,916,689.16/368,053.54
  6. Step 6: Final answer
    x = 285,534.32

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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.