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Finding the Fourth Proportional to 268,479.66, 370,503.32 and 147,628.74

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Solution

The fourth proportional to 268,479.66, 370,503.32 and 147,628.74 is: 203,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,479.66 : 370,503.32 = 147,628.74 : x
  2. Step 2: Convert to fraction form
    268,479.66/370,503.32 = 147,628.74/x
  3. Step 3: Cross multiply
    268,479.66x = 370,503.32 × 147,628.74
  4. Step 4: Simplify right side
    268,479.66x = 54,696,938,948.66
  5. Step 5: Solve for x
    x = 54,696,938,948.66/268,479.66
  6. Step 6: Final answer
    x = 203,728.42

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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.