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Finding the Fourth Proportional to 495,054.64, 683,187.78 and 268,699.60

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Solution

The fourth proportional to 495,054.64, 683,187.78 and 268,699.60 is: 370,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,054.64 : 683,187.78 = 268,699.60 : x
  2. Step 2: Convert to fraction form
    495,054.64/683,187.78 = 268,699.60/x
  3. Step 3: Cross multiply
    495,054.64x = 683,187.78 × 268,699.60
  4. Step 4: Simplify right side
    495,054.64x = 183,572,283,210.89
  5. Step 5: Solve for x
    x = 183,572,283,210.89/495,054.64
  6. Step 6: Final answer
    x = 370,812.17

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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.