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Finding the Fourth Proportional to 261,300.52, 360,551.41 and 153,831.34

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Solution

The fourth proportional to 261,300.52, 360,551.41 and 153,831.34 is: 212,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,300.52 : 360,551.41 = 153,831.34 : x
  2. Step 2: Convert to fraction form
    261,300.52/360,551.41 = 153,831.34/x
  3. Step 3: Cross multiply
    261,300.52x = 360,551.41 × 153,831.34
  4. Step 4: Simplify right side
    261,300.52x = 55,464,106,539.19
  5. Step 5: Solve for x
    x = 55,464,106,539.19/261,300.52
  6. Step 6: Final answer
    x = 212,261.75

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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.