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Finding the Fourth Proportional to 261,285.48, 360,650.70 and 170,655.30

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Solution

The fourth proportional to 261,285.48, 360,650.70 and 170,655.30 is: 235,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,285.48 : 360,650.70 = 170,655.30 : x
  2. Step 2: Convert to fraction form
    261,285.48/360,650.70 = 170,655.30/x
  3. Step 3: Cross multiply
    261,285.48x = 360,650.70 × 170,655.30
  4. Step 4: Simplify right side
    261,285.48x = 61,546,953,403.71
  5. Step 5: Solve for x
    x = 61,546,953,403.71/261,285.48
  6. Step 6: Final answer
    x = 235,554.43

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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.