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Finding the Fourth Proportional to 261,667.60, 361,107.92 and 146,955.40

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Solution

The fourth proportional to 261,667.60, 361,107.92 and 146,955.40 is: 202,802.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,667.60 : 361,107.92 = 146,955.40 : x
  2. Step 2: Convert to fraction form
    261,667.60/361,107.92 = 146,955.40/x
  3. Step 3: Cross multiply
    261,667.60x = 361,107.92 × 146,955.40
  4. Step 4: Simplify right side
    261,667.60x = 53,066,758,826.77
  5. Step 5: Solve for x
    x = 53,066,758,826.77/261,667.60
  6. Step 6: Final answer
    x = 202,802.18

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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.