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Finding the Fourth Proportional to 370,643.68, 511,488.18 and 200,877.82

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Solution

The fourth proportional to 370,643.68, 511,488.18 and 200,877.82 is: 277,211.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,643.68 : 511,488.18 = 200,877.82 : x
  2. Step 2: Convert to fraction form
    370,643.68/511,488.18 = 200,877.82/x
  3. Step 3: Cross multiply
    370,643.68x = 511,488.18 × 200,877.82
  4. Step 4: Simplify right side
    370,643.68x = 102,746,630,554.17
  5. Step 5: Solve for x
    x = 102,746,630,554.17/370,643.68
  6. Step 6: Final answer
    x = 277,211.34

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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.