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Finding the Fourth Proportional to 495,065.16, 683,190.74 and 268,710.76

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Solution

The fourth proportional to 495,065.16, 683,190.74 and 268,710.76 is: 370,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,065.16 : 683,190.74 = 268,710.76 : x
  2. Step 2: Convert to fraction form
    495,065.16/683,190.74 = 268,710.76/x
  3. Step 3: Cross multiply
    495,065.16x = 683,190.74 × 268,710.76
  4. Step 4: Simplify right side
    495,065.16x = 183,580,702,970.36
  5. Step 5: Solve for x
    x = 183,580,702,970.36/495,065.16
  6. Step 6: Final answer
    x = 370,821.29

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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.