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Finding the Fourth Proportional to 265,886.90, 366,925.06 and 145,030.78

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Solution

The fourth proportional to 265,886.90, 366,925.06 and 145,030.78 is: 200,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,886.90 : 366,925.06 = 145,030.78 : x
  2. Step 2: Convert to fraction form
    265,886.90/366,925.06 = 145,030.78/x
  3. Step 3: Cross multiply
    265,886.90x = 366,925.06 × 145,030.78
  4. Step 4: Simplify right side
    265,886.90x = 53,215,427,653.35
  5. Step 5: Solve for x
    x = 53,215,427,653.35/265,886.90
  6. Step 6: Final answer
    x = 200,143.10

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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.