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Finding the Fourth Proportional to 371,151.70, 556,727.55 and 318,007.60

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Solution

The fourth proportional to 371,151.70, 556,727.55 and 318,007.60 is: 477,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,151.70 : 556,727.55 = 318,007.60 : x
  2. Step 2: Convert to fraction form
    371,151.70/556,727.55 = 318,007.60/x
  3. Step 3: Cross multiply
    371,151.70x = 556,727.55 × 318,007.60
  4. Step 4: Simplify right side
    371,151.70x = 177,043,592,029.38
  5. Step 5: Solve for x
    x = 177,043,592,029.38/371,151.70
  6. Step 6: Final answer
    x = 477,011.40

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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.