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Finding the Fourth Proportional to 371,282.40, 556,923.60 and 121,964.40

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Solution

The fourth proportional to 371,282.40, 556,923.60 and 121,964.40 is: 182,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,282.40 : 556,923.60 = 121,964.40 : x
  2. Step 2: Convert to fraction form
    371,282.40/556,923.60 = 121,964.40/x
  3. Step 3: Cross multiply
    371,282.40x = 556,923.60 × 121,964.40
  4. Step 4: Simplify right side
    371,282.40x = 67,924,852,719.84
  5. Step 5: Solve for x
    x = 67,924,852,719.84/371,282.40
  6. Step 6: Final answer
    x = 182,946.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.