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Finding the Fourth Proportional to 371,585.69, 512,771.06 and 210,441.89

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Solution

The fourth proportional to 371,585.69, 512,771.06 and 210,441.89 is: 290,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,585.69 : 512,771.06 = 210,441.89 : x
  2. Step 2: Convert to fraction form
    371,585.69/512,771.06 = 210,441.89/x
  3. Step 3: Cross multiply
    371,585.69x = 512,771.06 × 210,441.89
  4. Step 4: Simplify right side
    371,585.69x = 107,908,512,811.74
  5. Step 5: Solve for x
    x = 107,908,512,811.74/371,585.69
  6. Step 6: Final answer
    x = 290,400.08

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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.