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Finding the Fourth Proportional to 260,686.07, 359,717.01 and 145,948.76

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Solution

The fourth proportional to 260,686.07, 359,717.01 and 145,948.76 is: 201,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,686.07 : 359,717.01 = 145,948.76 : x
  2. Step 2: Convert to fraction form
    260,686.07/359,717.01 = 145,948.76/x
  3. Step 3: Cross multiply
    260,686.07x = 359,717.01 × 145,948.76
  4. Step 4: Simplify right side
    260,686.07x = 52,500,249,761.82
  5. Step 5: Solve for x
    x = 52,500,249,761.82/260,686.07
  6. Step 6: Final answer
    x = 201,392.62

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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.