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Finding the Fourth Proportional to 368,445.06, 508,412.96 and 207,355.50

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Solution

The fourth proportional to 368,445.06, 508,412.96 and 207,355.50 is: 286,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,445.06 : 508,412.96 = 207,355.50 : x
  2. Step 2: Convert to fraction form
    368,445.06/508,412.96 = 207,355.50/x
  3. Step 3: Cross multiply
    368,445.06x = 508,412.96 × 207,355.50
  4. Step 4: Simplify right side
    368,445.06x = 105,422,223,527.28
  5. Step 5: Solve for x
    x = 105,422,223,527.28/368,445.06
  6. Step 6: Final answer
    x = 286,127.39

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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.