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Finding the Fourth Proportional to 495,033.50, 683,148.05 and 268,679

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Solution

The fourth proportional to 495,033.50, 683,148.05 and 268,679 is: 370,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,033.50 : 683,148.05 = 268,679 : x
  2. Step 2: Convert to fraction form
    495,033.50/683,148.05 = 268,679/x
  3. Step 3: Cross multiply
    495,033.50x = 683,148.05 × 268,679
  4. Step 4: Simplify right side
    495,033.50x = 183,547,534,925.95
  5. Step 5: Solve for x
    x = 183,547,534,925.95/495,033.50
  6. Step 6: Final answer
    x = 370,778.01

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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.