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Finding the Fourth Proportional to 261,601.78, 360,999.57 and 148,430.74

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Solution

The fourth proportional to 261,601.78, 360,999.57 and 148,430.74 is: 204,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,601.78 : 360,999.57 = 148,430.74 : x
  2. Step 2: Convert to fraction form
    261,601.78/360,999.57 = 148,430.74/x
  3. Step 3: Cross multiply
    261,601.78x = 360,999.57 × 148,430.74
  4. Step 4: Simplify right side
    261,601.78x = 53,583,433,314.78
  5. Step 5: Solve for x
    x = 53,583,433,314.78/261,601.78
  6. Step 6: Final answer
    x = 204,828.24

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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.