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Finding the Fourth Proportional to 366,989.51, 506,449.76 and 203,649.36

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Solution

The fourth proportional to 366,989.51, 506,449.76 and 203,649.36 is: 281,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.51 : 506,449.76 = 203,649.36 : x
  2. Step 2: Convert to fraction form
    366,989.51/506,449.76 = 203,649.36/x
  3. Step 3: Cross multiply
    366,989.51x = 506,449.76 × 203,649.36
  4. Step 4: Simplify right side
    366,989.51x = 103,138,168,477.91
  5. Step 5: Solve for x
    x = 103,138,168,477.91/366,989.51
  6. Step 6: Final answer
    x = 281,038.47

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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.