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Finding the Fourth Proportional to 495,065.72, 683,172.40 and 268,706.36

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Solution

The fourth proportional to 495,065.72, 683,172.40 and 268,706.36 is: 370,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,065.72 : 683,172.40 = 268,706.36 : x
  2. Step 2: Convert to fraction form
    495,065.72/683,172.40 = 268,706.36/x
  3. Step 3: Cross multiply
    495,065.72x = 683,172.40 × 268,706.36
  4. Step 4: Simplify right side
    495,065.72x = 183,572,768,856.46
  5. Step 5: Solve for x
    x = 183,572,768,856.46/495,065.72
  6. Step 6: Final answer
    x = 370,804.85

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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.