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Finding the Fourth Proportional to 265,870.21, 366,904.88 and 145,011.06

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Solution

The fourth proportional to 265,870.21, 366,904.88 and 145,011.06 is: 200,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,870.21 : 366,904.88 = 145,011.06 : x
  2. Step 2: Convert to fraction form
    265,870.21/366,904.88 = 145,011.06/x
  3. Step 3: Cross multiply
    265,870.21x = 366,904.88 × 145,011.06
  4. Step 4: Simplify right side
    265,870.21x = 53,205,265,567.97
  5. Step 5: Solve for x
    x = 53,205,265,567.97/265,870.21
  6. Step 6: Final answer
    x = 200,117.44

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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.