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Finding the Fourth Proportional to 261,038.48, 360,406.53 and 200,500.79

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Solution

The fourth proportional to 261,038.48, 360,406.53 and 200,500.79 is: 276,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,038.48 : 360,406.53 = 200,500.79 : x
  2. Step 2: Convert to fraction form
    261,038.48/360,406.53 = 200,500.79/x
  3. Step 3: Cross multiply
    261,038.48x = 360,406.53 × 200,500.79
  4. Step 4: Simplify right side
    261,038.48x = 72,261,792,184.13
  5. Step 5: Solve for x
    x = 72,261,792,184.13/261,038.48
  6. Step 6: Final answer
    x = 276,824.30

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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.